b31f3066e5e39d2adc89bf6086afedab6846b5aebb2e1cab16a5a9b4c4d843ae

Analysis

max time kernel
121s
max time network
124s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
28/01/2024, 18:35

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General

Target

b31f3066e5e39d2adc89bf6086afedab6846b5aebb2e1cab16a5a9b4c4d843ae.exe
Size

1.9MB
MD5

7cf1040a29c6acfe54b4a91624c84ea6
SHA1

6d25ccd49bf9b859b147bf1edee2d25d1dd55cf2
SHA256

b31f3066e5e39d2adc89bf6086afedab6846b5aebb2e1cab16a5a9b4c4d843ae
SHA512

f4891da2bc74001b584ff3443898c605d98b3c9c6778ab0f403c2aab2bb1703c8914b5a7c9a8afc1f874b3325030c748e35fb909393d4b5115cf6ba5a0574e6a
SSDEEP

49152:GhdI6XQdh10/pFVoXiEEEJMegg/dX7QNI:GhdI6gb10/pFV0BXJMeb/dX7p

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/0x000900000001222a-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2084	b31f3066e5e39d2adc89bf6086afedab6846b5aebb2e1cab16a5a9b4c4d843ae.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000900000001222a-1.dat	upx
behavioral1/memory/2084-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2084-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	b31f3066e5e39d2adc89bf6086afedab6846b5aebb2e1cab16a5a9b4c4d843ae.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2084	b31f3066e5e39d2adc89bf6086afedab6846b5aebb2e1cab16a5a9b4c4d843ae.exe

C:\Users\Admin\AppData\Local\Temp\b31f3066e5e39d2adc89bf6086afedab6846b5aebb2e1cab16a5a9b4c4d843ae.exe
"C:\Users\Admin\AppData\Local\Temp\b31f3066e5e39d2adc89bf6086afedab6846b5aebb2e1cab16a5a9b4c4d843ae.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
PID:2084

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/2084-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2084-6-0x0000000000150000-0x0000000000326000-memory.dmp

Filesize
1.8MB

Download
memory/2084-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download