Malware Analysis Report

2025-08-05 13:26

Sample ID 221203-z9w1rsbb3t
Target 2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a.exe
SHA256 2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a
Tags
nymaim discovery trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a

Threat Level: Known bad

The file 2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a.exe was found to be: Known bad.

Malicious Activity Summary

nymaim discovery trojan

NyMaim

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

Checks installed software on the system

Drops file in Program Files directory

Enumerates physical storage devices

Kills process with taskkill

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-12-03 21:25

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-12-03 21:25

Reported

2022-12-03 21:28

Platform

win7-20220812-en

Max time kernel

99s

Max time network

101s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a.exe"

Signatures

NyMaim

trojan nymaim

Checks installed software on the system

discovery

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files (x86)\PrintFolders\is-M2SEE.tmp C:\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp N/A
File created C:\Program Files (x86)\PrintFolders\is-VMAUO.tmp C:\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp N/A
File opened for modification C:\Program Files (x86)\PrintFolders\unins000.dat C:\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp N/A
File created C:\Program Files (x86)\PrintFolders\is-GFC9S.tmp C:\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp N/A
File created C:\Program Files (x86)\PrintFolders\is-6A91A.tmp C:\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp N/A
File opened for modification C:\Program Files (x86)\PrintFolders\PrintFolders.exe C:\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp N/A
File created C:\Program Files (x86)\PrintFolders\unins000.dat C:\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp N/A
File created C:\Program Files (x86)\PrintFolders\is-EI5RE.tmp C:\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp N/A
File created C:\Program Files (x86)\PrintFolders\is-A3MAK.tmp C:\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp N/A

Enumerates physical storage devices

Kills process with taskkill

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\taskkill.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\PrintFolders\PrintFolders.exe N/A
N/A N/A C:\Program Files (x86)\PrintFolders\PrintFolders.exe N/A
N/A N/A C:\Program Files (x86)\PrintFolders\PrintFolders.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeRestorePrivilege N/A C:\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp N/A
Token: SeBackupPrivilege N/A C:\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\taskkill.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1612 wrote to memory of 1952 N/A C:\Users\Admin\AppData\Local\Temp\2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a.exe C:\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp
PID 1612 wrote to memory of 1952 N/A C:\Users\Admin\AppData\Local\Temp\2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a.exe C:\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp
PID 1612 wrote to memory of 1952 N/A C:\Users\Admin\AppData\Local\Temp\2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a.exe C:\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp
PID 1612 wrote to memory of 1952 N/A C:\Users\Admin\AppData\Local\Temp\2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a.exe C:\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp
PID 1612 wrote to memory of 1952 N/A C:\Users\Admin\AppData\Local\Temp\2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a.exe C:\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp
PID 1612 wrote to memory of 1952 N/A C:\Users\Admin\AppData\Local\Temp\2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a.exe C:\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp
PID 1612 wrote to memory of 1952 N/A C:\Users\Admin\AppData\Local\Temp\2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a.exe C:\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp
PID 1952 wrote to memory of 1528 N/A C:\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp C:\Program Files (x86)\PrintFolders\PrintFolders.exe
PID 1952 wrote to memory of 1528 N/A C:\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp C:\Program Files (x86)\PrintFolders\PrintFolders.exe
PID 1952 wrote to memory of 1528 N/A C:\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp C:\Program Files (x86)\PrintFolders\PrintFolders.exe
PID 1952 wrote to memory of 1528 N/A C:\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp C:\Program Files (x86)\PrintFolders\PrintFolders.exe
PID 1952 wrote to memory of 1528 N/A C:\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp C:\Program Files (x86)\PrintFolders\PrintFolders.exe
PID 1952 wrote to memory of 1528 N/A C:\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp C:\Program Files (x86)\PrintFolders\PrintFolders.exe
PID 1952 wrote to memory of 1528 N/A C:\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp C:\Program Files (x86)\PrintFolders\PrintFolders.exe
PID 1528 wrote to memory of 1332 N/A C:\Program Files (x86)\PrintFolders\PrintFolders.exe C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\mUQXXah8g.exe
PID 1528 wrote to memory of 1332 N/A C:\Program Files (x86)\PrintFolders\PrintFolders.exe C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\mUQXXah8g.exe
PID 1528 wrote to memory of 1332 N/A C:\Program Files (x86)\PrintFolders\PrintFolders.exe C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\mUQXXah8g.exe
PID 1528 wrote to memory of 1332 N/A C:\Program Files (x86)\PrintFolders\PrintFolders.exe C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\mUQXXah8g.exe
PID 1528 wrote to memory of 1332 N/A C:\Program Files (x86)\PrintFolders\PrintFolders.exe C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\mUQXXah8g.exe
PID 1528 wrote to memory of 1332 N/A C:\Program Files (x86)\PrintFolders\PrintFolders.exe C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\mUQXXah8g.exe
PID 1528 wrote to memory of 1332 N/A C:\Program Files (x86)\PrintFolders\PrintFolders.exe C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\mUQXXah8g.exe
PID 1528 wrote to memory of 1540 N/A C:\Program Files (x86)\PrintFolders\PrintFolders.exe C:\Windows\SysWOW64\cmd.exe
PID 1528 wrote to memory of 1540 N/A C:\Program Files (x86)\PrintFolders\PrintFolders.exe C:\Windows\SysWOW64\cmd.exe
PID 1528 wrote to memory of 1540 N/A C:\Program Files (x86)\PrintFolders\PrintFolders.exe C:\Windows\SysWOW64\cmd.exe
PID 1528 wrote to memory of 1540 N/A C:\Program Files (x86)\PrintFolders\PrintFolders.exe C:\Windows\SysWOW64\cmd.exe
PID 1528 wrote to memory of 1540 N/A C:\Program Files (x86)\PrintFolders\PrintFolders.exe C:\Windows\SysWOW64\cmd.exe
PID 1528 wrote to memory of 1540 N/A C:\Program Files (x86)\PrintFolders\PrintFolders.exe C:\Windows\SysWOW64\cmd.exe
PID 1528 wrote to memory of 1540 N/A C:\Program Files (x86)\PrintFolders\PrintFolders.exe C:\Windows\SysWOW64\cmd.exe
PID 1540 wrote to memory of 1472 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 1540 wrote to memory of 1472 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 1540 wrote to memory of 1472 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 1540 wrote to memory of 1472 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 1540 wrote to memory of 1472 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 1540 wrote to memory of 1472 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 1540 wrote to memory of 1472 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a.exe

"C:\Users\Admin\AppData\Local\Temp\2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a.exe"

C:\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp

"C:\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp" /SL4 $60126 "C:\Users\Admin\AppData\Local\Temp\2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a.exe" 2086200 51712

C:\Program Files (x86)\PrintFolders\PrintFolders.exe

"C:\Program Files (x86)\PrintFolders\PrintFolders.exe"

C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\mUQXXah8g.exe

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "PrintFolders.exe" /f & erase "C:\Program Files (x86)\PrintFolders\PrintFolders.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "PrintFolders.exe" /f

Network

Country Destination Domain Proto
N/A 45.139.105.171:80 45.139.105.171 tcp
N/A 107.182.129.235:80 107.182.129.235 tcp
N/A 171.22.30.106:80 171.22.30.106 tcp

Files

memory/1612-54-0x0000000076681000-0x0000000076683000-memory.dmp

memory/1612-55-0x0000000000400000-0x0000000000413000-memory.dmp

\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp

MD5 363a4d2aa5d6cf5cbb2267cccf0c4436
SHA1 a4cdb756698ed28f522956166a6292e9e309dd9c
SHA256 b5cd942dd7019c1cda1715e4ce942094c41ad1e7bc7c5f63fe3ab7d97bc5a021
SHA512 b5929be6e258a63557f376b50a40f6d465cbd372a88e7dcae7944faacb9181cd55873f52dee99cee2e3705596b3b55cb6f784db800f5a32f06e63b9ead3e7c70

memory/1952-58-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp

MD5 363a4d2aa5d6cf5cbb2267cccf0c4436
SHA1 a4cdb756698ed28f522956166a6292e9e309dd9c
SHA256 b5cd942dd7019c1cda1715e4ce942094c41ad1e7bc7c5f63fe3ab7d97bc5a021
SHA512 b5929be6e258a63557f376b50a40f6d465cbd372a88e7dcae7944faacb9181cd55873f52dee99cee2e3705596b3b55cb6f784db800f5a32f06e63b9ead3e7c70

C:\Users\Admin\AppData\Local\Temp\is-EI5B5.tmp\is-SGFBU.tmp

MD5 363a4d2aa5d6cf5cbb2267cccf0c4436
SHA1 a4cdb756698ed28f522956166a6292e9e309dd9c
SHA256 b5cd942dd7019c1cda1715e4ce942094c41ad1e7bc7c5f63fe3ab7d97bc5a021
SHA512 b5929be6e258a63557f376b50a40f6d465cbd372a88e7dcae7944faacb9181cd55873f52dee99cee2e3705596b3b55cb6f784db800f5a32f06e63b9ead3e7c70

\Users\Admin\AppData\Local\Temp\is-9KUQ3.tmp\_isetup\_shfoldr.dll

MD5 92dc6ef532fbb4a5c3201469a5b5eb63
SHA1 3e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA256 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA512 9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

\Users\Admin\AppData\Local\Temp\is-9KUQ3.tmp\_isetup\_shfoldr.dll

MD5 92dc6ef532fbb4a5c3201469a5b5eb63
SHA1 3e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA256 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA512 9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

memory/1612-64-0x0000000000400000-0x0000000000413000-memory.dmp

\Users\Admin\AppData\Local\Temp\is-9KUQ3.tmp\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

\Program Files (x86)\PrintFolders\PrintFolders.exe

MD5 54283e5a16ea5d5a583a2717a66a1dc4
SHA1 39b970bb12234a59cf664b5bdca15c6c505b1f13
SHA256 a7e1974a5fd87030b0952400aac91eb5c4adb15f3002649f2e97e8be9db64641
SHA512 a9156fb9e05b2092a3aaa636cf2731072c59bfb1569f5e7476eefd9d1685499fb87e533243e7d12cc88088aa19226727e0e85771f2f1197ec3dc91f95441beea

memory/1528-67-0x0000000000000000-mapping.dmp

C:\Program Files (x86)\PrintFolders\PrintFolders.exe

MD5 54283e5a16ea5d5a583a2717a66a1dc4
SHA1 39b970bb12234a59cf664b5bdca15c6c505b1f13
SHA256 a7e1974a5fd87030b0952400aac91eb5c4adb15f3002649f2e97e8be9db64641
SHA512 a9156fb9e05b2092a3aaa636cf2731072c59bfb1569f5e7476eefd9d1685499fb87e533243e7d12cc88088aa19226727e0e85771f2f1197ec3dc91f95441beea

memory/1952-69-0x0000000003050000-0x00000000041B7000-memory.dmp

\Program Files (x86)\PrintFolders\PrintFolders.exe

MD5 54283e5a16ea5d5a583a2717a66a1dc4
SHA1 39b970bb12234a59cf664b5bdca15c6c505b1f13
SHA256 a7e1974a5fd87030b0952400aac91eb5c4adb15f3002649f2e97e8be9db64641
SHA512 a9156fb9e05b2092a3aaa636cf2731072c59bfb1569f5e7476eefd9d1685499fb87e533243e7d12cc88088aa19226727e0e85771f2f1197ec3dc91f95441beea

\Program Files (x86)\PrintFolders\PrintFolders.exe

MD5 54283e5a16ea5d5a583a2717a66a1dc4
SHA1 39b970bb12234a59cf664b5bdca15c6c505b1f13
SHA256 a7e1974a5fd87030b0952400aac91eb5c4adb15f3002649f2e97e8be9db64641
SHA512 a9156fb9e05b2092a3aaa636cf2731072c59bfb1569f5e7476eefd9d1685499fb87e533243e7d12cc88088aa19226727e0e85771f2f1197ec3dc91f95441beea

C:\Program Files (x86)\PrintFolders\PrintFolders.exe

MD5 54283e5a16ea5d5a583a2717a66a1dc4
SHA1 39b970bb12234a59cf664b5bdca15c6c505b1f13
SHA256 a7e1974a5fd87030b0952400aac91eb5c4adb15f3002649f2e97e8be9db64641
SHA512 a9156fb9e05b2092a3aaa636cf2731072c59bfb1569f5e7476eefd9d1685499fb87e533243e7d12cc88088aa19226727e0e85771f2f1197ec3dc91f95441beea

memory/1528-74-0x0000000000400000-0x0000000001567000-memory.dmp

memory/1528-75-0x0000000001E80000-0x0000000002FE7000-memory.dmp

memory/1528-76-0x0000000001E80000-0x0000000002FE7000-memory.dmp

memory/1528-77-0x0000000000400000-0x0000000001567000-memory.dmp

memory/1528-78-0x0000000000400000-0x0000000001567000-memory.dmp

memory/1528-79-0x0000000000400000-0x0000000001567000-memory.dmp

memory/1952-80-0x0000000003050000-0x00000000041B7000-memory.dmp

C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\mUQXXah8g.exe

MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

memory/1332-82-0x0000000000000000-mapping.dmp

\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\mUQXXah8g.exe

MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\mUQXXah8g.exe

MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\mUQXXah8g.exe

MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\mUQXXah8g.exe

MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

memory/1528-88-0x0000000000400000-0x0000000001567000-memory.dmp

memory/1528-89-0x0000000010000000-0x000000001001B000-memory.dmp

memory/1540-93-0x0000000000000000-mapping.dmp

memory/1528-95-0x0000000000400000-0x0000000001567000-memory.dmp

memory/1472-96-0x0000000000000000-mapping.dmp

memory/1612-97-0x0000000000400000-0x0000000000413000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-12-03 21:25

Reported

2022-12-03 21:28

Platform

win10v2004-20220812-en

Max time kernel

145s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a.exe"

Signatures

NyMaim

trojan nymaim

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation C:\Program Files (x86)\PrintFolders\PrintFolders.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\is-RCH9B.tmp\is-I23KV.tmp N/A

Checks installed software on the system

discovery

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files (x86)\PrintFolders\unins000.dat C:\Users\Admin\AppData\Local\Temp\is-RCH9B.tmp\is-I23KV.tmp N/A
File created C:\Program Files (x86)\PrintFolders\is-AHQG4.tmp C:\Users\Admin\AppData\Local\Temp\is-RCH9B.tmp\is-I23KV.tmp N/A
File created C:\Program Files (x86)\PrintFolders\is-34A48.tmp C:\Users\Admin\AppData\Local\Temp\is-RCH9B.tmp\is-I23KV.tmp N/A
File created C:\Program Files (x86)\PrintFolders\is-1TID7.tmp C:\Users\Admin\AppData\Local\Temp\is-RCH9B.tmp\is-I23KV.tmp N/A
File created C:\Program Files (x86)\PrintFolders\is-TJV2A.tmp C:\Users\Admin\AppData\Local\Temp\is-RCH9B.tmp\is-I23KV.tmp N/A
File created C:\Program Files (x86)\PrintFolders\is-0CML1.tmp C:\Users\Admin\AppData\Local\Temp\is-RCH9B.tmp\is-I23KV.tmp N/A
File created C:\Program Files (x86)\PrintFolders\unins000.dat C:\Users\Admin\AppData\Local\Temp\is-RCH9B.tmp\is-I23KV.tmp N/A
File created C:\Program Files (x86)\PrintFolders\is-BAAR4.tmp C:\Users\Admin\AppData\Local\Temp\is-RCH9B.tmp\is-I23KV.tmp N/A
File opened for modification C:\Program Files (x86)\PrintFolders\PrintFolders.exe C:\Users\Admin\AppData\Local\Temp\is-RCH9B.tmp\is-I23KV.tmp N/A

Enumerates physical storage devices

Kills process with taskkill

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\taskkill.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\taskkill.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2484 wrote to memory of 5084 N/A C:\Users\Admin\AppData\Local\Temp\2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a.exe C:\Users\Admin\AppData\Local\Temp\is-RCH9B.tmp\is-I23KV.tmp
PID 2484 wrote to memory of 5084 N/A C:\Users\Admin\AppData\Local\Temp\2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a.exe C:\Users\Admin\AppData\Local\Temp\is-RCH9B.tmp\is-I23KV.tmp
PID 2484 wrote to memory of 5084 N/A C:\Users\Admin\AppData\Local\Temp\2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a.exe C:\Users\Admin\AppData\Local\Temp\is-RCH9B.tmp\is-I23KV.tmp
PID 5084 wrote to memory of 1972 N/A C:\Users\Admin\AppData\Local\Temp\is-RCH9B.tmp\is-I23KV.tmp C:\Program Files (x86)\PrintFolders\PrintFolders.exe
PID 5084 wrote to memory of 1972 N/A C:\Users\Admin\AppData\Local\Temp\is-RCH9B.tmp\is-I23KV.tmp C:\Program Files (x86)\PrintFolders\PrintFolders.exe
PID 5084 wrote to memory of 1972 N/A C:\Users\Admin\AppData\Local\Temp\is-RCH9B.tmp\is-I23KV.tmp C:\Program Files (x86)\PrintFolders\PrintFolders.exe
PID 1972 wrote to memory of 764 N/A C:\Program Files (x86)\PrintFolders\PrintFolders.exe C:\Users\Admin\AppData\Roaming\{1ca2f389-1ab8-11ed-aebb-806e6f6e6963}\YbwKg.exe
PID 1972 wrote to memory of 764 N/A C:\Program Files (x86)\PrintFolders\PrintFolders.exe C:\Users\Admin\AppData\Roaming\{1ca2f389-1ab8-11ed-aebb-806e6f6e6963}\YbwKg.exe
PID 1972 wrote to memory of 764 N/A C:\Program Files (x86)\PrintFolders\PrintFolders.exe C:\Users\Admin\AppData\Roaming\{1ca2f389-1ab8-11ed-aebb-806e6f6e6963}\YbwKg.exe
PID 1972 wrote to memory of 1772 N/A C:\Program Files (x86)\PrintFolders\PrintFolders.exe C:\Windows\SysWOW64\cmd.exe
PID 1972 wrote to memory of 1772 N/A C:\Program Files (x86)\PrintFolders\PrintFolders.exe C:\Windows\SysWOW64\cmd.exe
PID 1972 wrote to memory of 1772 N/A C:\Program Files (x86)\PrintFolders\PrintFolders.exe C:\Windows\SysWOW64\cmd.exe
PID 1772 wrote to memory of 1404 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 1772 wrote to memory of 1404 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 1772 wrote to memory of 1404 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a.exe

"C:\Users\Admin\AppData\Local\Temp\2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a.exe"

C:\Users\Admin\AppData\Local\Temp\is-RCH9B.tmp\is-I23KV.tmp

"C:\Users\Admin\AppData\Local\Temp\is-RCH9B.tmp\is-I23KV.tmp" /SL4 $801BE "C:\Users\Admin\AppData\Local\Temp\2ac65a7eed2230024ef2adcad5e27cae05c95ec51fd9e4cda206c1a41bc73b9a.exe" 2086200 51712

C:\Program Files (x86)\PrintFolders\PrintFolders.exe

"C:\Program Files (x86)\PrintFolders\PrintFolders.exe"

C:\Users\Admin\AppData\Roaming\{1ca2f389-1ab8-11ed-aebb-806e6f6e6963}\YbwKg.exe

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "PrintFolders.exe" /f & erase "C:\Program Files (x86)\PrintFolders\PrintFolders.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "PrintFolders.exe" /f

Network

Country Destination Domain Proto
N/A 45.139.105.171:80 45.139.105.171 tcp
N/A 107.182.129.235:80 107.182.129.235 tcp
N/A 171.22.30.106:80 171.22.30.106 tcp

Files

memory/2484-132-0x0000000000400000-0x0000000000413000-memory.dmp

memory/2484-134-0x0000000000400000-0x0000000000413000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-RCH9B.tmp\is-I23KV.tmp

MD5 363a4d2aa5d6cf5cbb2267cccf0c4436
SHA1 a4cdb756698ed28f522956166a6292e9e309dd9c
SHA256 b5cd942dd7019c1cda1715e4ce942094c41ad1e7bc7c5f63fe3ab7d97bc5a021
SHA512 b5929be6e258a63557f376b50a40f6d465cbd372a88e7dcae7944faacb9181cd55873f52dee99cee2e3705596b3b55cb6f784db800f5a32f06e63b9ead3e7c70

memory/5084-135-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Local\Temp\is-RCH9B.tmp\is-I23KV.tmp

MD5 363a4d2aa5d6cf5cbb2267cccf0c4436
SHA1 a4cdb756698ed28f522956166a6292e9e309dd9c
SHA256 b5cd942dd7019c1cda1715e4ce942094c41ad1e7bc7c5f63fe3ab7d97bc5a021
SHA512 b5929be6e258a63557f376b50a40f6d465cbd372a88e7dcae7944faacb9181cd55873f52dee99cee2e3705596b3b55cb6f784db800f5a32f06e63b9ead3e7c70

C:\Users\Admin\AppData\Local\Temp\is-GBD70.tmp\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

memory/1972-139-0x0000000000000000-mapping.dmp

C:\Program Files (x86)\PrintFolders\PrintFolders.exe

MD5 54283e5a16ea5d5a583a2717a66a1dc4
SHA1 39b970bb12234a59cf664b5bdca15c6c505b1f13
SHA256 a7e1974a5fd87030b0952400aac91eb5c4adb15f3002649f2e97e8be9db64641
SHA512 a9156fb9e05b2092a3aaa636cf2731072c59bfb1569f5e7476eefd9d1685499fb87e533243e7d12cc88088aa19226727e0e85771f2f1197ec3dc91f95441beea

C:\Program Files (x86)\PrintFolders\PrintFolders.exe

MD5 54283e5a16ea5d5a583a2717a66a1dc4
SHA1 39b970bb12234a59cf664b5bdca15c6c505b1f13
SHA256 a7e1974a5fd87030b0952400aac91eb5c4adb15f3002649f2e97e8be9db64641
SHA512 a9156fb9e05b2092a3aaa636cf2731072c59bfb1569f5e7476eefd9d1685499fb87e533243e7d12cc88088aa19226727e0e85771f2f1197ec3dc91f95441beea

memory/1972-142-0x0000000000400000-0x0000000001567000-memory.dmp

memory/1972-143-0x0000000000400000-0x0000000001567000-memory.dmp

memory/2484-144-0x0000000000400000-0x0000000000413000-memory.dmp

memory/1972-145-0x0000000000400000-0x0000000001567000-memory.dmp

C:\Users\Admin\AppData\Roaming\{1ca2f389-1ab8-11ed-aebb-806e6f6e6963}\YbwKg.exe

MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

C:\Users\Admin\AppData\Roaming\{1ca2f389-1ab8-11ed-aebb-806e6f6e6963}\YbwKg.exe

MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

memory/764-146-0x0000000000000000-mapping.dmp

memory/1972-149-0x0000000010000000-0x000000001001B000-memory.dmp

memory/1972-153-0x0000000000400000-0x0000000001567000-memory.dmp

memory/1772-154-0x0000000000000000-mapping.dmp

memory/1404-155-0x0000000000000000-mapping.dmp

memory/1972-156-0x0000000000400000-0x0000000001567000-memory.dmp

memory/2484-157-0x0000000000400000-0x0000000000413000-memory.dmp