f79c5f68c9c4c758e5ae08d72ef34e0ae8f0875b54c05e4db396ee09b41e67f0

Analysis

max time kernel
43s
max time network
48s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
03/10/2022, 08:09

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General

Target
file.exe
Size 892KB
Sample221003-j15csaeeb4
SHA256 f79c5f68c9c4c758e5ae08d72ef34e0ae8f0875b54c05e4db396ee09b41e67f0
MD5 f2a50c517f3cf28d0ada515602824120
SHA1 f7f9dfec8ea39725af621118402303dd56181afe
SHA512 b4eee74dc15df739dec8059c660d5b2c2c25323ab87ae28b2f4de696999f3957a0781d04a4c9e2c1c8982efaa0cbaba2fbe3a596a06eb3a193542a9d81845dbc
SSDEEP 24576:yevXXzE97cYmvmc+CDh/mHPSBniZvwdRFH9u4BCnIN:fXDEO5VVOaBAqdu
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1648	Sink.exe.pif

Loads dropped DLL 1 IoCs

pid	Process
1684	cmd.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce	file.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	file.exe

Enumerates processes with tasklist 1 TTPs 2 IoCs

Process Discovery

T1057

pid	Process
108	tasklist.exe
552	tasklist.exe

Runs ping.exe 1 TTPs 2 IoCs

Remote System Discovery

T1018

pid	Process
1624	PING.EXE
1140	PING.EXE

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1648	Sink.exe.pif
1648	Sink.exe.pif
1648	Sink.exe.pif

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	552	tasklist.exe
Token: SeDebugPrivilege	108	tasklist.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
1648	Sink.exe.pif
1648	Sink.exe.pif
1648	Sink.exe.pif

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
1648	Sink.exe.pif
1648	Sink.exe.pif
1648	Sink.exe.pif

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 620 wrote to memory of 1188	620	file.exe	27
PID 620 wrote to memory of 1188	620	file.exe	27
PID 620 wrote to memory of 1188	620	file.exe	27
PID 620 wrote to memory of 1188	620	file.exe	27
PID 620 wrote to memory of 320	620	file.exe	29
PID 620 wrote to memory of 320	620	file.exe	29
PID 620 wrote to memory of 320	620	file.exe	29
PID 620 wrote to memory of 320	620	file.exe	29
PID 320 wrote to memory of 1684	320	cmd.exe	31
PID 320 wrote to memory of 1684	320	cmd.exe	31
PID 320 wrote to memory of 1684	320	cmd.exe	31
PID 320 wrote to memory of 1684	320	cmd.exe	31
PID 1684 wrote to memory of 552	1684	cmd.exe	32
PID 1684 wrote to memory of 552	1684	cmd.exe	32
PID 1684 wrote to memory of 552	1684	cmd.exe	32
PID 1684 wrote to memory of 552	1684	cmd.exe	32
PID 1684 wrote to memory of 1492	1684	cmd.exe	33
PID 1684 wrote to memory of 1492	1684	cmd.exe	33
PID 1684 wrote to memory of 1492	1684	cmd.exe	33
PID 1684 wrote to memory of 1492	1684	cmd.exe	33
PID 1684 wrote to memory of 108	1684	cmd.exe	35
PID 1684 wrote to memory of 108	1684	cmd.exe	35
PID 1684 wrote to memory of 108	1684	cmd.exe	35
PID 1684 wrote to memory of 108	1684	cmd.exe	35
PID 1684 wrote to memory of 1120	1684	cmd.exe	36
PID 1684 wrote to memory of 1120	1684	cmd.exe	36
PID 1684 wrote to memory of 1120	1684	cmd.exe	36
PID 1684 wrote to memory of 1120	1684	cmd.exe	36
PID 1684 wrote to memory of 664	1684	cmd.exe	37
PID 1684 wrote to memory of 664	1684	cmd.exe	37
PID 1684 wrote to memory of 664	1684	cmd.exe	37
PID 1684 wrote to memory of 664	1684	cmd.exe	37
PID 1684 wrote to memory of 1648	1684	cmd.exe	38
PID 1684 wrote to memory of 1648	1684	cmd.exe	38
PID 1684 wrote to memory of 1648	1684	cmd.exe	38
PID 1684 wrote to memory of 1648	1684	cmd.exe	38
PID 1684 wrote to memory of 1624	1684	cmd.exe	39
PID 1684 wrote to memory of 1624	1684	cmd.exe	39
PID 1684 wrote to memory of 1624	1684	cmd.exe	39
PID 1684 wrote to memory of 1624	1684	cmd.exe	39
PID 320 wrote to memory of 1140	320	cmd.exe	40
PID 320 wrote to memory of 1140	320	cmd.exe	40
PID 320 wrote to memory of 1140	320	cmd.exe	40
PID 320 wrote to memory of 1140	320	cmd.exe	40

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:620
- C:\Windows\SysWOW64\at.exe
  at 3874982763784yhwgdfg78234789s42809374918uf
  2⤵
  PID:1188
- C:\Windows\SysWOW64\cmd.exe
  cmd /c cmd < Row.potx & ping -n 5 localhost
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:320
- - C:\Windows\SysWOW64\cmd.exe
    cmd
    3⤵
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:1684
  - - C:\Windows\SysWOW64\tasklist.exe
      tasklist /FI "imagename eq AvastUI.exe"
      4⤵
      Enumerates processes with tasklist
      Suspicious use of AdjustPrivilegeToken
      PID:552
  - - C:\Windows\SysWOW64\find.exe
      find /I /N "avastui.exe"
      4⤵
      PID:1492
  - - C:\Windows\SysWOW64\tasklist.exe
      tasklist /FI "imagename eq AVGUI.exe"
      4⤵
      Enumerates processes with tasklist
      Suspicious use of AdjustPrivilegeToken
      PID:108
  - - C:\Windows\SysWOW64\find.exe
      find /I /N "avgui.exe"
      4⤵
      PID:1120
  - - C:\Windows\SysWOW64\findstr.exe
      findstr /V /R "^WQlKwgWhizJI$" Admit.potx
      4⤵
      PID:664
  - - C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Sink.exe.pif
      Sink.exe.pif w
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of FindShellTrayWindow
      Suspicious use of SendNotifyMessage
      PID:1648
  - - C:\Windows\SysWOW64\PING.EXE
      ping localhost -n 5
      4⤵
      Runs ping.exe
      PID:1624
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 5 localhost
    3⤵
    - Runs ping.exe
    PID:1140

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Process Discovery

T1057

Remote System Discovery

T1018

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

Admit.potx

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Admit.potx
Size 924KB
SHA256 a2408a724211dc93f4a3b8da35db5484813af73df1a40881cd79c549085a1efa
MD5 5b962b3a17af84559642705ed349e076
SHA1 31bda184f93087b3e9b0d967d96cb2d20d22c224
SHA512 9553bf3a644e9079bc64907e5693e56d72558d3faf4794f6789fb4cd2a92d81d8152f1be5b54a1255ba5fb751f7b14384a5819baf0aadeb84f0728e20a312ef6
SSDEEP 24576:RErOxpVnqgt5ExLh27RQlf7Yfq2WZz2a1BB69:R86pqeE74aB0Sdia1W9
MD5 SHA1 SHA512 SSDEEP

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Row.potx

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Row.potx
Size 10KB
SHA256 b27879df847c4c5fadb4e5a5818543e8cf03e8f07020a810c974a1617203f39e
MD5 b55df0da42581d318eb77e74c3739a50
SHA1 f3896cba3b3506b6587e05fa996ffd01194b5e77
SHA512 e8d4c710771aae41143b120bd9d8fe09a8b672aedd8911012462727ba50918dcfb70256d6ed8d7c9b3dc5cd9006cba6579adc459d66000cc71510348006d76c8
SSDEEP 192:sK9KOtRoJ27rBNGsvtObIdxa3weii5pNcK6HNXW+74BZN7FdyN8Z4UziNN4NX/+1:sutqYCsr0s
MD5 SHA1 SHA512 SSDEEP

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Sink.exe.pif

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Sink.exe.pif
Size 924KB
SHA256 3e26723394ade92f8163b5643960189cb07358b0f96529a477d37176d68aa0a0
MD5 6987e4cd3f256462f422326a7ef115b9
SHA1 71672a495b4603ecfec40a65254cb3ba8766bbe0
SHA512 4b1d7f7ffee39a2d65504767beeddd4c3374807a93889b14e7e73db11e478492dec349aedca03ce828f21a66bb666a68d3735443f4249556e10825a4cd7dfeb4
SSDEEP 24576:LErOxpVnqgt5ExLh27RQlf7Yfq2WZz2a1BB69:L86pqeE74aB0Sdia1W9
MD5 SHA1 SHA512 SSDEEP

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Sink.exe.pif

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Sink.exe.pif
Size 924KB
SHA256 3e26723394ade92f8163b5643960189cb07358b0f96529a477d37176d68aa0a0
MD5 6987e4cd3f256462f422326a7ef115b9
SHA1 71672a495b4603ecfec40a65254cb3ba8766bbe0
SHA512 4b1d7f7ffee39a2d65504767beeddd4c3374807a93889b14e7e73db11e478492dec349aedca03ce828f21a66bb666a68d3735443f4249556e10825a4cd7dfeb4
SSDEEP 24576:LErOxpVnqgt5ExLh27RQlf7Yfq2WZz2a1BB69:L86pqeE74aB0Sdia1W9
MD5 SHA1 SHA512 SSDEEP

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Soul.potx

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Soul.potx
Size 880KB
SHA256 42b13c741724ae3578e6d9b1c97af3607aac67b427dcd16a1b875b7451e2fa60
MD5 3e95e9c46823aa10f88904cb658fef85
SHA1 63355e2296871c414e5ab5ad1b341f394d75bf82
SHA512 c4f0d0f625b6a9786918cd94230c87b881a4d40f32f65d4edb7e3fb9f9625f22fc9bb254b5c9e36024e072dd8cabfd733ebe6250aeba89222890d523d4b3f60e
SSDEEP 12288:Hzn/sHKJqZP0c29tazEFz2te6DmfDLgXN30qXBgPmIx5XPvg0mVC3iDwtw/OtINL:uzNWgh+esi0xyX
MD5 SHA1 SHA512 SSDEEP

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Sink.exe.pif

Path \Users\Admin\AppData\Local\Temp\IXP000.TMP\Sink.exe.pif
Size 924KB
SHA256 3e26723394ade92f8163b5643960189cb07358b0f96529a477d37176d68aa0a0
MD5 6987e4cd3f256462f422326a7ef115b9
SHA1 71672a495b4603ecfec40a65254cb3ba8766bbe0
SHA512 4b1d7f7ffee39a2d65504767beeddd4c3374807a93889b14e7e73db11e478492dec349aedca03ce828f21a66bb666a68d3735443f4249556e10825a4cd7dfeb4
SSDEEP 24576:LErOxpVnqgt5ExLh27RQlf7Yfq2WZz2a1BB69:L86pqeE74aB0Sdia1W9
MD5 SHA1 SHA512 SSDEEP

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memory/1188-55-0x0000000075711000-0x0000000075713000-memory.dmp

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