1cbdbc2553018d5afbfe7dc7755f54462660a48c6774389e3ee899ead9926f1e

Analysis

max time kernel
199s
max time network
125s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
19/01/2024, 10:05

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General

Target

com/appsflyer/oaid/R$drawable.class
Size

4KB
MD5

9a804ccf156df51812e7a684c4e19e89
SHA1

6b86d321b73274ec1363607bff8c9052462bbf96
SHA256

406e310ad88f73afe709efc54a93f2182508f680246ec3621b7d99c8c2991255
SHA512

2bc59e79d2d4fe596467eb331f39579ee238af96f43efbcc9bc2471a9aefbb25430f6bb68cc5f57955f469c4dd225cce5d34413c72f441a2a9f5d88e25f87912
SSDEEP

96:8mMdwB22uWWazgK9Bx2loGALFZMxyuScSOlkbJ:BMaHX9Bx2eRFKglcNs

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
Set value (str)	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\class_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\class_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\.class	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\class_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\class_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\.class\ = "class_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\class_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\class_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1588	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1588	AcroRd32.exe
1588	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2516 wrote to memory of 2880	2516	cmd.exe	30
PID 2516 wrote to memory of 2880	2516	cmd.exe	30
PID 2516 wrote to memory of 2880	2516	cmd.exe	30
PID 2880 wrote to memory of 1588	2880	rundll32.exe	31
PID 2880 wrote to memory of 1588	2880	rundll32.exe	31
PID 2880 wrote to memory of 1588	2880	rundll32.exe	31
PID 2880 wrote to memory of 1588	2880	rundll32.exe	31

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\com\appsflyer\oaid\R$drawable.class
1⤵
- Suspicious use of WriteProcessMemory
PID:2516
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\com\appsflyer\oaid\R$drawable.class
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2880
- - 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\com\appsflyer\oaid\R$drawable.class"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:1588

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

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Downloads

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

Filesize
3KB

MD5
c13516a001d5e5590493d39500f57845

SHA1
0c4a6cab44c39cc8193f96979fbb3004a66832ac

SHA256
929dd5bceaef6f566b88901335e7de03557a7eb36df538b8c9eb8a2ba44585fc

SHA512
662a3dc6cc8a0dd3047d884ff8b30c0c6f3ea9f65efe4ffbd37e9daee0f0364b8f90119e3bc882a89258a61067267aabe486263ff3ad6a068a0abebbb9cc285a

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