b5bc95ab2eca7e1d08e66167bfd3536437b58696a9d5c109b9bf1dd1a3f9f93e

Analysis

max time kernel
120s
max time network
125s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/03/2024, 13:00

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General

Target

b5bc95ab2eca7e1d08e66167bfd3536437b58696a9d5c109b9bf1dd1a3f9f93e.exe
Size

440KB
MD5

629911009803382215a3ca1b2bc3671c
SHA1

09210a8a137683aa89b3facc97b8722846e36ba9
SHA256

b5bc95ab2eca7e1d08e66167bfd3536437b58696a9d5c109b9bf1dd1a3f9f93e
SHA512

c83896c61fff44699c6a86943dce008fe307772849a862e6f2ae4cad4dc2a48104aa15a54ebf74a3488ee9bbc9f80ca759e9fde1cc5a33a31a9f62540a7d25d3
SSDEEP

12288:2/J+CtaxnjZpAbxdxDcWcnR4bfXfwiSeiw8xHgbYpj58NO0qyeWfF02/S0lqJqc6:+el3+s0tfeUYqcZQCGm4YprEH7RL

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/0x000d00000000e655-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2148	b5bc95ab2eca7e1d08e66167bfd3536437b58696a9d5c109b9bf1dd1a3f9f93e.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2148-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/files/0x000d00000000e655-1.dat	upx
behavioral1/memory/2148-15-0x0000000010000000-0x0000000010030000-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:	b5bc95ab2eca7e1d08e66167bfd3536437b58696a9d5c109b9bf1dd1a3f9f93e.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	b5bc95ab2eca7e1d08e66167bfd3536437b58696a9d5c109b9bf1dd1a3f9f93e.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2148	b5bc95ab2eca7e1d08e66167bfd3536437b58696a9d5c109b9bf1dd1a3f9f93e.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2148	b5bc95ab2eca7e1d08e66167bfd3536437b58696a9d5c109b9bf1dd1a3f9f93e.exe

C:\Users\Admin\AppData\Local\Temp\b5bc95ab2eca7e1d08e66167bfd3536437b58696a9d5c109b9bf1dd1a3f9f93e.exe
"C:\Users\Admin\AppData\Local\Temp\b5bc95ab2eca7e1d08e66167bfd3536437b58696a9d5c109b9bf1dd1a3f9f93e.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2148

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

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

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/2148-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2148-9-0x0000000000830000-0x0000000000897000-memory.dmp

Filesize
412KB

Download
memory/2148-14-0x0000000000830000-0x0000000000897000-memory.dmp

Filesize
412KB

Download
memory/2148-15-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download