464625931908902b56c52f88b5ec769fd9f76dec66f5cb1bdc0aa42869120b8a

Analysis

max time kernel
121s
max time network
155s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
15-10-2023 15:05

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General

Target

b0a6713c75901b4a03eba47202bbc070_dll32_JC.dll
Size

120KB
MD5

b0a6713c75901b4a03eba47202bbc070
SHA1

ca476d6ad107c9c51c651ae1925466762cbf5ca6
SHA256

464625931908902b56c52f88b5ec769fd9f76dec66f5cb1bdc0aa42869120b8a
SHA512

d4f0a907e4abced0a67f985f485f7e3b7d175a0f96de61f8b84b43e607ab44c0c2d96a9fade58ee18356fe2c2ede95683bbb113090794ced2d3b33dd172d2e23
SSDEEP

1536:A8mug1s9a5eeILF4IOxITDuC7TN2s+zheW6BVrqzCJ3bdDY+W14N4NmzWlIA7hKX:eu6ebFCxITDD2lQBV+UdE+rECWp7hK0A

Score

7^/10

upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 2 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000d00000001224c-2.dat	acprotect
behavioral1/files/0x000d00000001224c-10.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2100	rundll32.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000d00000001224c-2.dat	upx
behavioral1/memory/2100-4-0x0000000000120000-0x0000000000150000-memory.dmp	upx
behavioral1/memory/2100-7-0x0000000010000000-0x000000001000C000-memory.dmp	upx
behavioral1/files/0x000d00000001224c-10.dat	upx
behavioral1/memory/2100-13-0x0000000000120000-0x0000000000150000-memory.dmp	upx

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\e:	rundll32.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	rundll32.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2100	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2100	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2264 wrote to memory of 2100	2264	rundll32.exe	29
PID 2264 wrote to memory of 2100	2264	rundll32.exe	29
PID 2264 wrote to memory of 2100	2264	rundll32.exe	29
PID 2264 wrote to memory of 2100	2264	rundll32.exe	29
PID 2264 wrote to memory of 2100	2264	rundll32.exe	29
PID 2264 wrote to memory of 2100	2264	rundll32.exe	29
PID 2264 wrote to memory of 2100	2264	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b0a6713c75901b4a03eba47202bbc070_dll32_JC.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2264
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b0a6713c75901b4a03eba47202bbc070_dll32_JC.dll,#1
  2⤵
  - Loads dropped DLL
  - Enumerates connected drives
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2100

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/2100-0-0x0000000010000000-0x000000001000C000-memory.dmp

Filesize
48KB

Download
memory/2100-4-0x0000000000120000-0x0000000000150000-memory.dmp

Filesize
192KB

Download
memory/2100-5-0x0000000010000000-0x000000001000C000-memory.dmp

Filesize
48KB

Download
memory/2100-7-0x0000000010000000-0x000000001000C000-memory.dmp

Filesize
48KB

Download
memory/2100-8-0x0000000010000000-0x000000001000C000-memory.dmp

Filesize
48KB

Download
memory/2100-13-0x0000000000120000-0x0000000000150000-memory.dmp

Filesize
192KB

Download