661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef

Analysis

max time kernel
142s
max time network
120s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
03/02/2024, 17:32

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General

Target

661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef.exe
Size

1.5MB
MD5

5661ac1b595c67e3b11d82f4672f1310
SHA1

55ceb33a681a5b4d01ba60d6594fbccec522a3e8
SHA256

661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef
SHA512

4ab4f01ba7748f30a1cca770a11743a81bd3125b1bbc06e3053302abc67144e1314abf1af237c7dc1f94fb2382144fbd003b6636fbf9790a3bb2959198240856
SSDEEP

24576:B/WD+nDKdmWr4qt9voQ7ayJ1UNeZ5ZTyXOmScQ3mWn+8irkN46LG/LP3nrEH7w:++nDsmWMqt9AmZ20D+o3LOfN

Score

8^/10

persistence upx

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x0007000000012281-2.dat	acprotect

Loads dropped DLL 2 IoCs

pid	Process
1916	661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef.exe
2352	WerFault.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/files/0x0007000000012281-2.dat	upx
behavioral1/memory/1916-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/1916-12-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2352	1916	WerFault.exe	27

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1916	661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1916 wrote to memory of 2352	1916	661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef.exe	29
PID 1916 wrote to memory of 2352	1916	661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef.exe	29
PID 1916 wrote to memory of 2352	1916	661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef.exe	29
PID 1916 wrote to memory of 2352	1916	661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef.exe	29

C:\Users\Admin\AppData\Local\Temp\661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef.exe
"C:\Users\Admin\AppData\Local\Temp\661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1916
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1916 -s 340
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:2352

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

Replay Monitor

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Downloads

\Program Files\Common Files\System\symsrv.dll

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/1916-1-0x0000000000400000-0x000000000057A000-memory.dmp

Filesize
1.5MB

Download
memory/1916-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1916-8-0x0000000000400000-0x000000000057A000-memory.dmp

Filesize
1.5MB

Download
memory/1916-9-0x0000000000400000-0x000000000057A000-memory.dmp

Filesize
1.5MB

Download
memory/1916-12-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download