nymaim | 73fd731aedba1a434be2bc706b3cb58e2f5734849f75fe2e65b1f23195f286e0

Analysis

max time kernel
53s
max time network
55s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
15/11/2022, 14:33

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General

Target
file.exe
Size 2.1MB
Sample221115-rwva1sec76
SHA256 73fd731aedba1a434be2bc706b3cb58e2f5734849f75fe2e65b1f23195f286e0
MD5 d88ab61b0634e4c95c309cfd16b45c93
SHA1 a150218b292d5826cf8374080e72d162b2968afd
SHA512 7f2e6cf88d3fd696a8287dbba076ca4bb06c8c758e4f15ffa08b68439f6d286cedb20aa56250949c9c23c5a64c93972239ab8411676ebfb3f5ae000698b1c047
SSDEEP 49152:g2foSNa9QM5kEWW5WJ7wROMQXLKIYffT1RI4URsA:NfoibM5km5WJ0RHyLKIYf71R9A
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nymaim discovery trojan

Malware Config

Extracted

Family

nymaim

45.139.105.171
85.31.46.167

Signatures

NyMaim
NyMaim is a malware with various capabilities written in C++ and first seen in 2013.
trojan nymaim

Executes dropped EXE 3 IoCs

pid	Process
2040	is-FR88M.tmp
2020	glsearcher80.exe
676	nGDBvyK1.exe

Loads dropped DLL 6 IoCs

pid	Process
940	file.exe
2040	is-FR88M.tmp
2040	is-FR88M.tmp
2040	is-FR88M.tmp
2040	is-FR88M.tmp
2020	glsearcher80.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in Program Files directory 12 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\glSearcher\unins000.dat	is-FR88M.tmp
File created	C:\Program Files (x86)\glSearcher\is-7J0FT.tmp	is-FR88M.tmp
File created	C:\Program Files (x86)\glSearcher\is-CE4LD.tmp	is-FR88M.tmp
File created	C:\Program Files (x86)\glSearcher\is-7O6H9.tmp	is-FR88M.tmp
File created	C:\Program Files (x86)\glSearcher\is-GUOTS.tmp	is-FR88M.tmp
File created	C:\Program Files (x86)\glSearcher\is-0EA33.tmp	is-FR88M.tmp
File created	C:\Program Files (x86)\glSearcher\is-KJHSD.tmp	is-FR88M.tmp
File opened for modification	C:\Program Files (x86)\glSearcher\unins000.dat	is-FR88M.tmp
File opened for modification	C:\Program Files (x86)\glSearcher\glsearcher80.exe	is-FR88M.tmp
File created	C:\Program Files (x86)\glSearcher\is-SA5G1.tmp	is-FR88M.tmp
File created	C:\Program Files (x86)\glSearcher\is-G8R3A.tmp	is-FR88M.tmp
File created	C:\Program Files (x86)\glSearcher\is-6LHP1.tmp	is-FR88M.tmp

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Kills process with taskkill 1 IoCs

evasion

pid	Process
1700	taskkill.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2020	glsearcher80.exe
2020	glsearcher80.exe
2020	glsearcher80.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1700	taskkill.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 940 wrote to memory of 2040	940	file.exe	28
PID 940 wrote to memory of 2040	940	file.exe	28
PID 940 wrote to memory of 2040	940	file.exe	28
PID 940 wrote to memory of 2040	940	file.exe	28
PID 940 wrote to memory of 2040	940	file.exe	28
PID 940 wrote to memory of 2040	940	file.exe	28
PID 940 wrote to memory of 2040	940	file.exe	28
PID 2040 wrote to memory of 2020	2040	is-FR88M.tmp	29
PID 2040 wrote to memory of 2020	2040	is-FR88M.tmp	29
PID 2040 wrote to memory of 2020	2040	is-FR88M.tmp	29
PID 2040 wrote to memory of 2020	2040	is-FR88M.tmp	29
PID 2020 wrote to memory of 676	2020	glsearcher80.exe	30
PID 2020 wrote to memory of 676	2020	glsearcher80.exe	30
PID 2020 wrote to memory of 676	2020	glsearcher80.exe	30
PID 2020 wrote to memory of 676	2020	glsearcher80.exe	30
PID 2020 wrote to memory of 1844	2020	glsearcher80.exe	33
PID 2020 wrote to memory of 1844	2020	glsearcher80.exe	33
PID 2020 wrote to memory of 1844	2020	glsearcher80.exe	33
PID 2020 wrote to memory of 1844	2020	glsearcher80.exe	33
PID 1844 wrote to memory of 1700	1844	cmd.exe	35
PID 1844 wrote to memory of 1700	1844	cmd.exe	35
PID 1844 wrote to memory of 1700	1844	cmd.exe	35
PID 1844 wrote to memory of 1700	1844	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:940
- C:\Users\Admin\AppData\Local\Temp\is-F3LS3.tmp\is-FR88M.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-F3LS3.tmp\is-FR88M.tmp" /SL4 $70128 "C:\Users\Admin\AppData\Local\Temp\file.exe" 1919260 210432
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:2040
- - C:\Program Files (x86)\glSearcher\glsearcher80.exe
    "C:\Program Files (x86)\glSearcher\glsearcher80.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:2020
  - - C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\nGDBvyK1.exe
      4⤵
      Executes dropped EXE
      PID:676
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "glsearcher80.exe" /f & erase "C:\Program Files (x86)\glSearcher\glsearcher80.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1844
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "glsearcher80.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1700

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

glsearcher80.exe

Path C:\Program Files (x86)\glSearcher\glsearcher80.exe
Size 2.7MB
SHA256 6a46a8098ea1c5f7655e7cdf7885e95786881f1fe787413e4b24edfb7ab254e3
MD5 0820cb3b83984b213c92326d53b3b461
SHA1 f9d7de4a07c98ce58f3e8a10e5f8c75d1a391610
SHA512 1dce49dab77ca36d30eba0bc2a1ce98b586662e50a666b84e6acad77b467c41042776cbbf14edac2d29580c8bf17b782c547a994d15df0bdb8425408b5bba5dc
SSDEEP 49152:iVAvaxZ3G9c0VSb1+/zSpvBUMMS5dhQLt0UoSepl5PnU5KgEYKn:A0kbuOxBUMMS5dhQ6UozLPnU5hcn
MD5 SHA1 SHA512 SSDEEP

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glsearcher80.exe

Path C:\Program Files (x86)\glSearcher\glsearcher80.exe
Size 2.7MB
SHA256 6a46a8098ea1c5f7655e7cdf7885e95786881f1fe787413e4b24edfb7ab254e3
MD5 0820cb3b83984b213c92326d53b3b461
SHA1 f9d7de4a07c98ce58f3e8a10e5f8c75d1a391610
SHA512 1dce49dab77ca36d30eba0bc2a1ce98b586662e50a666b84e6acad77b467c41042776cbbf14edac2d29580c8bf17b782c547a994d15df0bdb8425408b5bba5dc
SSDEEP 49152:iVAvaxZ3G9c0VSb1+/zSpvBUMMS5dhQLt0UoSepl5PnU5KgEYKn:A0kbuOxBUMMS5dhQ6UozLPnU5hcn
MD5 SHA1 SHA512 SSDEEP

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is-FR88M.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-F3LS3.tmp\is-FR88M.tmp
Size 811KB
SHA256 7a903a8629a778d9523c59602f8d384897a682c7feea348710100b82a8df6151
MD5 47348a10b98f3bc121c038891516fd85
SHA1 ea7975da0f356286ce7fbb3d5e7fe4acb7f53773
SHA512 48c46bf65fbed103d142964c53fee288a87a73591b4bcdb7199b60fbec7151ab22538de553ad321fb1813e466b928b826b34fb381442c53dfaff02259461639e
SSDEEP 24576:YFRCUn4rP/37YzHXA6QJsoPtIp2GoSZxga:YerP/37YzHXA6QJ3PtIptoS3P
MD5 SHA1 SHA512 SSDEEP

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is-FR88M.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-F3LS3.tmp\is-FR88M.tmp
Size 811KB
SHA256 7a903a8629a778d9523c59602f8d384897a682c7feea348710100b82a8df6151
MD5 47348a10b98f3bc121c038891516fd85
SHA1 ea7975da0f356286ce7fbb3d5e7fe4acb7f53773
SHA512 48c46bf65fbed103d142964c53fee288a87a73591b4bcdb7199b60fbec7151ab22538de553ad321fb1813e466b928b826b34fb381442c53dfaff02259461639e
SSDEEP 24576:YFRCUn4rP/37YzHXA6QJsoPtIp2GoSZxga:YerP/37YzHXA6QJ3PtIptoS3P
MD5 SHA1 SHA512 SSDEEP

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nGDBvyK1.exe

Path C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\nGDBvyK1.exe
Size 72KB
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
MD5 SHA1 SHA512 SSDEEP

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glsearcher80.exe

Path \Program Files (x86)\glSearcher\glsearcher80.exe
Size 2.7MB
SHA256 6a46a8098ea1c5f7655e7cdf7885e95786881f1fe787413e4b24edfb7ab254e3
MD5 0820cb3b83984b213c92326d53b3b461
SHA1 f9d7de4a07c98ce58f3e8a10e5f8c75d1a391610
SHA512 1dce49dab77ca36d30eba0bc2a1ce98b586662e50a666b84e6acad77b467c41042776cbbf14edac2d29580c8bf17b782c547a994d15df0bdb8425408b5bba5dc
SSDEEP 49152:iVAvaxZ3G9c0VSb1+/zSpvBUMMS5dhQLt0UoSepl5PnU5KgEYKn:A0kbuOxBUMMS5dhQ6UozLPnU5hcn
MD5 SHA1 SHA512 SSDEEP

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is-FR88M.tmp

Path \Users\Admin\AppData\Local\Temp\is-F3LS3.tmp\is-FR88M.tmp
Size 811KB
SHA256 7a903a8629a778d9523c59602f8d384897a682c7feea348710100b82a8df6151
MD5 47348a10b98f3bc121c038891516fd85
SHA1 ea7975da0f356286ce7fbb3d5e7fe4acb7f53773
SHA512 48c46bf65fbed103d142964c53fee288a87a73591b4bcdb7199b60fbec7151ab22538de553ad321fb1813e466b928b826b34fb381442c53dfaff02259461639e
SSDEEP 24576:YFRCUn4rP/37YzHXA6QJsoPtIp2GoSZxga:YerP/37YzHXA6QJ3PtIptoS3P
MD5 SHA1 SHA512 SSDEEP

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_iscrypt.dll

Path \Users\Admin\AppData\Local\Temp\is-VC007.tmp\_isetup\_iscrypt.dll
Size 2KB
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
MD5 SHA1 SHA512

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_shfoldr.dll

Path \Users\Admin\AppData\Local\Temp\is-VC007.tmp\_isetup\_shfoldr.dll
Size 22KB
SHA256 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
MD5 92dc6ef532fbb4a5c3201469a5b5eb63
SHA1 3e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA512 9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
SSDEEP 384:+Vm08QoKkiWZ76UJuP71W55iWHHoSHigH2euwsHTGHVb+VHHmnH+aHjHqLHxmoq1:2m08QotiCjJuPGw4
MD5 SHA1 SHA512 SSDEEP

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_shfoldr.dll

Path \Users\Admin\AppData\Local\Temp\is-VC007.tmp\_isetup\_shfoldr.dll
Size 22KB
SHA256 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
MD5 92dc6ef532fbb4a5c3201469a5b5eb63
SHA1 3e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA512 9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
SSDEEP 384:+Vm08QoKkiWZ76UJuP71W55iWHHoSHigH2euwsHTGHVb+VHHmnH+aHjHqLHxmoq1:2m08QotiCjJuPGw4
MD5 SHA1 SHA512 SSDEEP

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nGDBvyK1.exe

Path \Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\nGDBvyK1.exe
Size 72KB
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
MD5 SHA1 SHA512 SSDEEP

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memory/940-66-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/940-86-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/940-55-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/940-54-0x0000000075991000-0x0000000075993000-memory.dmp

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memory/2020-70-0x0000000000400000-0x00000000014A8000-memory.dmp

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memory/2020-73-0x0000000000400000-0x00000000014A8000-memory.dmp

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memory/2020-77-0x0000000010000000-0x000000001001B000-memory.dmp

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memory/2020-82-0x0000000000400000-0x00000000014A8000-memory.dmp

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memory/2020-71-0x0000000000400000-0x00000000014A8000-memory.dmp

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memory/2020-85-0x0000000000400000-0x00000000014A8000-memory.dmp

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memory/2040-81-0x0000000003100000-0x00000000041A8000-memory.dmp

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memory/2040-68-0x0000000003100000-0x00000000041A8000-memory.dmp

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