Analysis
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max time kernel
58s -
max time network
61s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
20/11/2022, 16:46
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220901-en
General
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Target
file.exe
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Size
2.2MB
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MD5
482aba8c8f5e450a3062f1ac28b56c3d
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SHA1
603e99c4b18537ce35a795408ee1e14b16926ae9
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SHA256
001279e7bbffee58af244a3a87c40f0aaa1b99d235390dabcba4a8b52ccfda7d
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SHA512
86d8256beff25593eb8e562130dedd620063c682306bd621191536e832a122b8c25890560017edfe7e2ad1f05258295e2051b3f181750671b3a2ac63f7cfa56c
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SSDEEP
49152:q2HCoyO9j+/+8OrQzg3igHq1XVfKXmWaNVkVUxVkBaFwnm:ri/O9k+8Ocz8BH6FKlNUxVkB04m
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
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Executes dropped EXE 3 IoCs
pid Process 1928 is-7ANRL.tmp 2028 gusearcher85.exe 1676 eJ9M1os3OdBW8R.exe -
Loads dropped DLL 6 IoCs
pid Process 1444 file.exe 1928 is-7ANRL.tmp 1928 is-7ANRL.tmp 1928 is-7ANRL.tmp 1928 is-7ANRL.tmp 2028 gusearcher85.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops file in Program Files directory 12 IoCs
description ioc Process File created C:\Program Files (x86)\guSearcher\is-48RSI.tmp is-7ANRL.tmp File opened for modification C:\Program Files (x86)\guSearcher\unins000.dat is-7ANRL.tmp File opened for modification C:\Program Files (x86)\guSearcher\gusearcher85.exe is-7ANRL.tmp File created C:\Program Files (x86)\guSearcher\unins000.dat is-7ANRL.tmp File created C:\Program Files (x86)\guSearcher\is-097Q4.tmp is-7ANRL.tmp File created C:\Program Files (x86)\guSearcher\is-03RR1.tmp is-7ANRL.tmp File created C:\Program Files (x86)\guSearcher\is-AN8FR.tmp is-7ANRL.tmp File created C:\Program Files (x86)\guSearcher\is-6O5HP.tmp is-7ANRL.tmp File created C:\Program Files (x86)\guSearcher\is-PANVK.tmp is-7ANRL.tmp File created C:\Program Files (x86)\guSearcher\is-L1GNA.tmp is-7ANRL.tmp File created C:\Program Files (x86)\guSearcher\is-R8P36.tmp is-7ANRL.tmp File created C:\Program Files (x86)\guSearcher\is-86AS2.tmp is-7ANRL.tmp -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Kills process with taskkill 1 IoCs
pid Process 1336 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 2028 gusearcher85.exe 2028 gusearcher85.exe 2028 gusearcher85.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1336 taskkill.exe -
Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 1444 wrote to memory of 1928 1444 file.exe 27 PID 1444 wrote to memory of 1928 1444 file.exe 27 PID 1444 wrote to memory of 1928 1444 file.exe 27 PID 1444 wrote to memory of 1928 1444 file.exe 27 PID 1444 wrote to memory of 1928 1444 file.exe 27 PID 1444 wrote to memory of 1928 1444 file.exe 27 PID 1444 wrote to memory of 1928 1444 file.exe 27 PID 1928 wrote to memory of 2028 1928 is-7ANRL.tmp 28 PID 1928 wrote to memory of 2028 1928 is-7ANRL.tmp 28 PID 1928 wrote to memory of 2028 1928 is-7ANRL.tmp 28 PID 1928 wrote to memory of 2028 1928 is-7ANRL.tmp 28 PID 2028 wrote to memory of 1676 2028 gusearcher85.exe 29 PID 2028 wrote to memory of 1676 2028 gusearcher85.exe 29 PID 2028 wrote to memory of 1676 2028 gusearcher85.exe 29 PID 2028 wrote to memory of 1676 2028 gusearcher85.exe 29 PID 2028 wrote to memory of 1708 2028 gusearcher85.exe 32 PID 2028 wrote to memory of 1708 2028 gusearcher85.exe 32 PID 2028 wrote to memory of 1708 2028 gusearcher85.exe 32 PID 2028 wrote to memory of 1708 2028 gusearcher85.exe 32 PID 1708 wrote to memory of 1336 1708 cmd.exe 34 PID 1708 wrote to memory of 1336 1708 cmd.exe 34 PID 1708 wrote to memory of 1336 1708 cmd.exe 34 PID 1708 wrote to memory of 1336 1708 cmd.exe 34
Processes
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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:1444 -
C:\Users\Admin\AppData\Local\Temp\is-F3U5M.tmp\is-7ANRL.tmp"C:\Users\Admin\AppData\Local\Temp\is-F3U5M.tmp\is-7ANRL.tmp" /SL4 $A0124 "C:\Users\Admin\AppData\Local\Temp\file.exe" 2080542 3184642⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1928 -
C:\Program Files (x86)\guSearcher\gusearcher85.exe"C:\Program Files (x86)\guSearcher\gusearcher85.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2028 -
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\eJ9M1os3OdBW8R.exe4⤵
- Executes dropped EXE
PID:1676
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "gusearcher85.exe" /f & erase "C:\Program Files (x86)\guSearcher\gusearcher85.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
PID:1708 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "gusearcher85.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1336
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
3.0MB
MD55f39c366be07dc38fd412b60553719c0
SHA12a022111a933df20577f28b022cc8bb5845127f9
SHA25621ca84e64e5f686553f37d3797fb9773540f8b730eeb1b72ff3705d460b6c994
SHA512df1fd22dad9499c7a07d98051770cb2349ec8fc5195d91f95710e93a1cb909df5cd9c13a5eb6777e177e6faffa50e8b51d1ed0d879c9b0cc8936bd4f22b70e70
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Filesize
3.0MB
MD55f39c366be07dc38fd412b60553719c0
SHA12a022111a933df20577f28b022cc8bb5845127f9
SHA25621ca84e64e5f686553f37d3797fb9773540f8b730eeb1b72ff3705d460b6c994
SHA512df1fd22dad9499c7a07d98051770cb2349ec8fc5195d91f95710e93a1cb909df5cd9c13a5eb6777e177e6faffa50e8b51d1ed0d879c9b0cc8936bd4f22b70e70
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Filesize
917KB
MD5f4d82ac5ccb900eb1ced5e8b69fac0c7
SHA1b43f8fa853706d5732c4d77b7a509977ebe78ea3
SHA256a9881bd0cfd544279a707471babeed014cd134268f2e793cecb604d1f9a987ff
SHA51226fa609a47f7d57cc4b00bd861e7ad5441e4f891a76a50f3c8fed8a3ac51868641c1600fe50438c558f5fdd1ae790b1bbb286475e281a7fd46c5b892e110711c
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Filesize
917KB
MD5f4d82ac5ccb900eb1ced5e8b69fac0c7
SHA1b43f8fa853706d5732c4d77b7a509977ebe78ea3
SHA256a9881bd0cfd544279a707471babeed014cd134268f2e793cecb604d1f9a987ff
SHA51226fa609a47f7d57cc4b00bd861e7ad5441e4f891a76a50f3c8fed8a3ac51868641c1600fe50438c558f5fdd1ae790b1bbb286475e281a7fd46c5b892e110711c
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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Filesize
3.0MB
MD55f39c366be07dc38fd412b60553719c0
SHA12a022111a933df20577f28b022cc8bb5845127f9
SHA25621ca84e64e5f686553f37d3797fb9773540f8b730eeb1b72ff3705d460b6c994
SHA512df1fd22dad9499c7a07d98051770cb2349ec8fc5195d91f95710e93a1cb909df5cd9c13a5eb6777e177e6faffa50e8b51d1ed0d879c9b0cc8936bd4f22b70e70
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
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Filesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
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Filesize
917KB
MD5f4d82ac5ccb900eb1ced5e8b69fac0c7
SHA1b43f8fa853706d5732c4d77b7a509977ebe78ea3
SHA256a9881bd0cfd544279a707471babeed014cd134268f2e793cecb604d1f9a987ff
SHA51226fa609a47f7d57cc4b00bd861e7ad5441e4f891a76a50f3c8fed8a3ac51868641c1600fe50438c558f5fdd1ae790b1bbb286475e281a7fd46c5b892e110711c
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c