088a9f665d0fdc9b2bb050ecd1524b1539010bbe1d9935f72343bb2bc5f98975

Analysis

max time kernel
118s
max time network
128s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29/04/2024, 18:10

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General

Target

chrome_200_percent.pak
Size

190KB
MD5

c37bd7a6b677a37313b7ecc4ff01b6f5
SHA1

79db970c44347bd3566cefb6cabd1995e8e173df
SHA256

8c1ae81d19fd6323a02eb460e075e2f25aba322bc7d46f2e6edb1c4600e6537a
SHA512

a7b07133fa05593b102a0e5e5788b29488cb74656c5ee25de897c2ba2b2a7b05c0663ade74a003f7d6df2134d0b75f0ad25e15e9c9e0969e9453b7fc40b9f8bb
SSDEEP

3072:ADQYaE/N6Mrvy/3JP29W2bg3yhPaafR54x5GMR+F44ffbdZnYw9p4AbIVGYoDd+y:ADQYaSN6svyd242k3yxgx5GMRejnbdZR

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
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pak_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\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pak_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3028	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3028	AcroRd32.exe
3028	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1644 wrote to memory of 2604	1644	cmd.exe	29
PID 1644 wrote to memory of 2604	1644	cmd.exe	29
PID 1644 wrote to memory of 2604	1644	cmd.exe	29
PID 2604 wrote to memory of 3028	2604	rundll32.exe	30
PID 2604 wrote to memory of 3028	2604	rundll32.exe	30
PID 2604 wrote to memory of 3028	2604	rundll32.exe	30
PID 2604 wrote to memory of 3028	2604	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\chrome_200_percent.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:1644
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\chrome_200_percent.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2604
- - 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\chrome_200_percent.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:3028

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
e252243e811f9e3fb88c0f55bffafa67

SHA1
6aba1a82ea1ece8104734796b47e0b5c9e3bf96a

SHA256
1792e1a14959666056714c9107c02122f2955513696f7c92b6d841de40a82df3

SHA512
f253abed3af8ef9938fd20e4c7e8b420467cfaee825309d947cbe980a1cce21d09145596646d4c8d428733e988eedb125afbad8f801f15f0f507a03bd523d4cd

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