0a9db6e9e13a8c8e14b3562c4af3d96d4c7e68a00ffbb722d2caa2c037ba334a

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
20-04-2024 18:31

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General

Target

0a9db6e9e13a8c8e14b3562c4af3d96d4c7e68a00ffbb722d2caa2c037ba334a.exe
Size

107KB
MD5

33e06f65b319484f48184bdbf6cba33f
SHA1

3081c2831095f50b15728352b3cb70974512774b
SHA256

0a9db6e9e13a8c8e14b3562c4af3d96d4c7e68a00ffbb722d2caa2c037ba334a
SHA512

bfe762c92f4f02ca174c794f37bb243720014d869f964d65b1ae201b1ce8ea05a70758fd6b6845df9e74848237386237f08338fda1f944832336de6fd4b62c3a
SSDEEP

1536:+7PvnKhWQtC3Izj6TrlDa2z6Ewd0zvPTQw9LBZRQ8V3zhbPp:uPvKztiIzj6xtDLBZRQ8Vj5Pp

Score

9^/10

persistence

Malware Config

Signatures

Detects executables packed with eXPressor 2 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023466-3.dat	INDICATOR_EXE_Packed_eXPressor
behavioral2/memory/4384-6-0x0000000013150000-0x0000000013167000-memory.dmp	INDICATOR_EXE_Packed_eXPressor

Modifies Installed Components in the registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{CFF8FD86-05DB-4990-92A9-0EE5FDFB7BFE}	regedit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{CFF8FD86-05DB-4990-92A9-0EE5FDFB7BFE}\stubpath = "C:\\Windows\\system32\\WinHelp3.exe"	regedit.exe

Deletes itself 1 IoCs

pid	Process
1008	WinHelp3.exe

Executes dropped EXE 1 IoCs

pid	Process
1008	WinHelp3.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\WinHelp3.exe	0a9db6e9e13a8c8e14b3562c4af3d96d4c7e68a00ffbb722d2caa2c037ba334a.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
964	4384	WerFault.exe	95
4888	4384	WerFault.exe	95

Runs .reg file with regedit 1 IoCs

pid	Process
744	regedit.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1008	WinHelp3.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4748 wrote to memory of 744	4748	0a9db6e9e13a8c8e14b3562c4af3d96d4c7e68a00ffbb722d2caa2c037ba334a.exe	89
PID 4748 wrote to memory of 744	4748	0a9db6e9e13a8c8e14b3562c4af3d96d4c7e68a00ffbb722d2caa2c037ba334a.exe	89
PID 4748 wrote to memory of 744	4748	0a9db6e9e13a8c8e14b3562c4af3d96d4c7e68a00ffbb722d2caa2c037ba334a.exe	89
PID 4748 wrote to memory of 1008	4748	0a9db6e9e13a8c8e14b3562c4af3d96d4c7e68a00ffbb722d2caa2c037ba334a.exe	90
PID 4748 wrote to memory of 1008	4748	0a9db6e9e13a8c8e14b3562c4af3d96d4c7e68a00ffbb722d2caa2c037ba334a.exe	90
PID 4748 wrote to memory of 1008	4748	0a9db6e9e13a8c8e14b3562c4af3d96d4c7e68a00ffbb722d2caa2c037ba334a.exe	90
PID 1008 wrote to memory of 4384	1008	WinHelp3.exe	95
PID 1008 wrote to memory of 4384	1008	WinHelp3.exe	95
PID 1008 wrote to memory of 4384	1008	WinHelp3.exe	95
PID 1008 wrote to memory of 4384	1008	WinHelp3.exe	95

C:\Users\Admin\AppData\Local\Temp\0a9db6e9e13a8c8e14b3562c4af3d96d4c7e68a00ffbb722d2caa2c037ba334a.exe
"C:\Users\Admin\AppData\Local\Temp\0a9db6e9e13a8c8e14b3562c4af3d96d4c7e68a00ffbb722d2caa2c037ba334a.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4748
- C:\Windows\SysWOW64\regedit.exe
  regedit.exe /s C:\Users\Admin\AppData\Local\Temp\240635703.reg
  2⤵
  - Modifies Installed Components in the registry
  - Runs .reg file with regedit
  PID:744
- C:\Windows\SysWOW64\WinHelp3.exe
  C:\Windows\system32\WinHelp3.exe kowdgjttgC:\Users\Admin\AppData\Local\Temp\0a9db6e9e13a8c8e14b3562c4af3d96d4c7e68a00ffbb722d2caa2c037ba334a.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1008
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\system32\svchost.exe
    3⤵
    PID:4384
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 204
      4⤵
      Program crash
      PID:964
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 212
      4⤵
      Program crash
      PID:4888

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4384 -ip 4384
1⤵
PID:924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4384 -ip 4384
1⤵
PID:5112

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\240635703.reg

Filesize
378B

MD5
94f4a855c827e15e1fa7c8a57bc22e06

SHA1
e640023daa26b2ef3e7371f9b0b1c9798f3f72ce

SHA256
bf2b394d40273a7305a3b03bd982d199a224842818a2133cb8c0fdad05873cee

SHA512
b0388fb467332bc344f034a9152642417f81c75d609398d62744a0e90bc2efbfa4db59c9f6d60bc8bd9cc7f982a89dd532fd17d198a2a02c9512544909306a3a

Download Submit
C:\Windows\SysWOW64\WinHelp3.exe

Filesize
107KB

MD5
bc3d531ea8651fcab56c1b8883d6c682

SHA1
bc4b39fe1b9a6631c6c2fab09222527898aabc25

SHA256
9dadcb5a5bd6d6b8910bd5622142cccd9e812600fdb6fa8f412c4e3de9259d6a

SHA512
5a26fe1ab383eca3af4dcaf2e3712af596f16cf24c1e65ce193dc93b60f7e4ce250413cd838236c7970e9e98d0c9394d3c145a872dad01fe8201867e4ce58138

Download Submit
memory/4384-6-0x0000000013150000-0x0000000013167000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads