babb6603ef3db2a4394ad8ea40c6373245dad6604bee7481383acd003cf9f70a

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
27-03-2024 01:33

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General

Target

GB0029.gb
Size

32KB
MD5

7f1e1ce56aca694b46da2ba407b60cb3
SHA1

211221bd34b3ae86ce5d647a81caab8bb91bfa71
SHA256

ed0ab3bfcbc6ac96cc1c8eebb9cdabf0c52e1a562d115eefe47b2078746bc691
SHA512

6c92cf2769055923edcedfd61a8b413dfd5270a383afe8637b0b8ea12ae5aa6b93748199539435200bf25398f691cf8806cd18e74e4fd2de2518507708af1a0c
SSDEEP

768:PP+2nR7+sAy5DL1dDsF3uTSAIdL0bDKZGNd:Pm2WS963kSAfNd

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.gb\ = "gb_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\gb_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\gb_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\gb_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\gb_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\gb_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.gb	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\gb_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2428	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2428	AcroRd32.exe
2428	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 2524	2252	cmd.exe	29
PID 2252 wrote to memory of 2524	2252	cmd.exe	29
PID 2252 wrote to memory of 2524	2252	cmd.exe	29
PID 2524 wrote to memory of 2428	2524	rundll32.exe	30
PID 2524 wrote to memory of 2428	2524	rundll32.exe	30
PID 2524 wrote to memory of 2428	2524	rundll32.exe	30
PID 2524 wrote to memory of 2428	2524	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\GB0029.gb
1⤵
- Suspicious use of WriteProcessMemory
PID:2252
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\GB0029.gb
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2524
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\GB0029.gb"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2428

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
3da4e0b2f04156ad77f623dc95d78a5d

SHA1
7a6d2e5c94b35acadcf04cf105680688e271c486

SHA256
2bbe29cf455ad90835f8f542ff986cdf591c4500c5f71e737d89c5795bbb1293

SHA512
7fed928c2c14a10981f67919968aa56b47337c522265403f7410540b612284a0559c00d5dccc73e1bb456d7e4d3ba67427e285a1756f28718067a5d09bd0d769

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