b9cc26f6cc30942c0f54134fd8ff95c87d0c63a74bc57c6724603ec63e4d94e2

Analysis

max time kernel
148s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
06/12/2022, 12:57

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General

Target
b9cc26f6cc30942c0f54134fd8ff95c87d0c63a74bc57c6724603ec63e4d94e2.exe
Size 249KB
Sample221206-p686taae47
SHA256 b9cc26f6cc30942c0f54134fd8ff95c87d0c63a74bc57c6724603ec63e4d94e2
MD5 4011c591946de4c19898e1c5e54f0aa4
SHA1 5210204058d35f1c53cd278eee34a5b6f327e9df
SHA512 b9a6e72c0e3948c8f8e585390857d4e9eeedac3d13bb3e6b459f232abac0ff5b3818836c4f8417dbbff2d032e276c08fca3be054b07dd0cd605f3d5645e311a5
SSDEEP 6144:eWq8/eR6p0yN90QE1BRYU+d0rwqR6M3hIPk:L/eBy905RP+d0Eq48N
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4088	15911.exe
1424	15911.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	b9cc26f6cc30942c0f54134fd8ff95c87d0c63a74bc57c6724603ec63e4d94e2.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\\\""	b9cc26f6cc30942c0f54134fd8ff95c87d0c63a74bc57c6724603ec63e4d94e2.exe

Suspicious use of SetThreadContext 6 IoCs

description	pid	Process	procid_target
PID 4088 set thread context of 1424	4088	15911.exe	80
PID 4088 set thread context of 0	4088	15911.exe
PID 4088 set thread context of 0	4088	15911.exe
PID 4088 set thread context of 0	4088	15911.exe
PID 4088 set thread context of 0	4088	15911.exe
PID 4088 set thread context of 0	4088	15911.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1424	15911.exe
1424	15911.exe
1424	15911.exe
1424	15911.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4088	15911.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 1436 wrote to memory of 4088	1436	b9cc26f6cc30942c0f54134fd8ff95c87d0c63a74bc57c6724603ec63e4d94e2.exe	79
PID 1436 wrote to memory of 4088	1436	b9cc26f6cc30942c0f54134fd8ff95c87d0c63a74bc57c6724603ec63e4d94e2.exe	79
PID 1436 wrote to memory of 4088	1436	b9cc26f6cc30942c0f54134fd8ff95c87d0c63a74bc57c6724603ec63e4d94e2.exe	79
PID 4088 wrote to memory of 1424	4088	15911.exe	80
PID 4088 wrote to memory of 1424	4088	15911.exe	80
PID 4088 wrote to memory of 1424	4088	15911.exe	80
PID 4088 wrote to memory of 1424	4088	15911.exe	80
PID 4088 wrote to memory of 1424	4088	15911.exe	80
PID 4088 wrote to memory of 1424	4088	15911.exe	80
PID 4088 wrote to memory of 1424	4088	15911.exe	80
PID 4088 wrote to memory of 0	4088	15911.exe
PID 4088 wrote to memory of 0	4088	15911.exe
PID 4088 wrote to memory of 0	4088	15911.exe
PID 4088 wrote to memory of 0	4088	15911.exe
PID 4088 wrote to memory of 0	4088	15911.exe
PID 4088 wrote to memory of 0	4088	15911.exe
PID 4088 wrote to memory of 0	4088	15911.exe
PID 4088 wrote to memory of 0	4088	15911.exe
PID 4088 wrote to memory of 0	4088	15911.exe
PID 4088 wrote to memory of 0	4088	15911.exe
PID 4088 wrote to memory of 0	4088	15911.exe
PID 4088 wrote to memory of 0	4088	15911.exe
PID 4088 wrote to memory of 0	4088	15911.exe
PID 4088 wrote to memory of 0	4088	15911.exe
PID 4088 wrote to memory of 0	4088	15911.exe
PID 4088 wrote to memory of 0	4088	15911.exe
PID 4088 wrote to memory of 0	4088	15911.exe
PID 4088 wrote to memory of 0	4088	15911.exe
PID 4088 wrote to memory of 0	4088	15911.exe
PID 4088 wrote to memory of 0	4088	15911.exe
PID 1424 wrote to memory of 2484	1424	15911.exe	44
PID 1424 wrote to memory of 2484	1424	15911.exe	44
PID 1424 wrote to memory of 2484	1424	15911.exe	44
PID 1424 wrote to memory of 2484	1424	15911.exe	44

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:2484
- C:\Users\Admin\AppData\Local\Temp\b9cc26f6cc30942c0f54134fd8ff95c87d0c63a74bc57c6724603ec63e4d94e2.exe
  "C:\Users\Admin\AppData\Local\Temp\b9cc26f6cc30942c0f54134fd8ff95c87d0c63a74bc57c6724603ec63e4d94e2.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:1436
- - C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\15911.exe
    C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\15911.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4088
  - - C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\15911.exe
      "C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\15911.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:1424

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

15911.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\15911.exe
Size 364KB
SHA256 de91bc1712e52bc0faa976700ed5a2152a3a466e2ba46a684fe189d414b239bb
MD5 a4a0b5864d177694528dc6fdd80b091d
SHA1 e00a83525b26cfeb8fee5e9dc20aceef4b809458
SHA512 e7f3a8ece722f8fefe7e95dc71fe9004c112d302a63e3924d22a2c89a2af333151cd48c9842c136929cdf9392417f893953bbed4dfdc2e727e21a7fb62161955
SSDEEP 3072:Gb30a/qJ3PyFCHhAnk27xhItLHKgFnwr4:GKWg5Z
MD5 SHA1 SHA512 SSDEEP

Submit Download

15911.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\15911.exe
Size 364KB
SHA256 de91bc1712e52bc0faa976700ed5a2152a3a466e2ba46a684fe189d414b239bb
MD5 a4a0b5864d177694528dc6fdd80b091d
SHA1 e00a83525b26cfeb8fee5e9dc20aceef4b809458
SHA512 e7f3a8ece722f8fefe7e95dc71fe9004c112d302a63e3924d22a2c89a2af333151cd48c9842c136929cdf9392417f893953bbed4dfdc2e727e21a7fb62161955
SSDEEP 3072:Gb30a/qJ3PyFCHhAnk27xhItLHKgFnwr4:GKWg5Z
MD5 SHA1 SHA512 SSDEEP

Submit Download

15911.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\15911.exe
Size 364KB
SHA256 de91bc1712e52bc0faa976700ed5a2152a3a466e2ba46a684fe189d414b239bb
MD5 a4a0b5864d177694528dc6fdd80b091d
SHA1 e00a83525b26cfeb8fee5e9dc20aceef4b809458
SHA512 e7f3a8ece722f8fefe7e95dc71fe9004c112d302a63e3924d22a2c89a2af333151cd48c9842c136929cdf9392417f893953bbed4dfdc2e727e21a7fb62161955
SSDEEP 3072:Gb30a/qJ3PyFCHhAnk27xhItLHKgFnwr4:GKWg5Z
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/0-144-0x0000000000400000-0x0000000000408960-memory.dmp

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memory/0-141-0x0000000000400000-0x0000000000408960-memory.dmp

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memory/0-143-0x0000000000400000-0x0000000000408960-memory.dmp

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memory/0-146-0x0000000000400000-0x0000000000408960-memory.dmp

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memory/1424-138-0x0000000000400000-0x0000000000409000-memory.dmp

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memory/1424-145-0x0000000000400000-0x0000000000408960-memory.dmp

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memory/1424-147-0x0000000010000000-0x0000000010013000-memory.dmp

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memory/1424-149-0x0000000010000000-0x0000000010013000-memory.dmp

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memory/2484-148-0x000000007FFF0000-0x000000007FFF7000-memory.dmp

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