565e3abc2f08e6231bb981c366fccfe42796b6ff530bdc66d1aaa5f7e23b05f0

Analysis

max time kernel
152s
max time network
126s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
11/11/2023, 22:22

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General

Target

Expensive-2.0/natives/jemalloc.dll.git
Size

40B
MD5

6f4c13fe58b839ee7f057c0213688d38
SHA1

497d2f86f4fce8d743c6f405683aca504874bc06
SHA256

f6701bf0645e8b4fdc10cdbff75bd1a5b5270c000318d41e4cbf091c6fad53a6
SHA512

8feb7c707e1c3eee175970f2bf71275091da79b1de6e6682ab9e5082a5719771242d9d6c3eeb022549bc455f80e7ab046e7814b301c018460454a5ef0fa0d651

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-1-5-21-2952504676-3105837840-1406404655-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2952504676-3105837840-1406404655-1000_CLASSES\git_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2952504676-3105837840-1406404655-1000_CLASSES\.git	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2952504676-3105837840-1406404655-1000_CLASSES\.git\ = "git_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2952504676-3105837840-1406404655-1000_CLASSES\git_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2952504676-3105837840-1406404655-1000_CLASSES\git_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2952504676-3105837840-1406404655-1000_CLASSES\git_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2952504676-3105837840-1406404655-1000_CLASSES\git_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2952504676-3105837840-1406404655-1000_CLASSES\git_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2672	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2672	AcroRd32.exe
2672	AcroRd32.exe
2672	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1876 wrote to memory of 2724	1876	cmd.exe	29
PID 1876 wrote to memory of 2724	1876	cmd.exe	29
PID 1876 wrote to memory of 2724	1876	cmd.exe	29
PID 2724 wrote to memory of 2672	2724	rundll32.exe	30
PID 2724 wrote to memory of 2672	2724	rundll32.exe	30
PID 2724 wrote to memory of 2672	2724	rundll32.exe	30
PID 2724 wrote to memory of 2672	2724	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Expensive-2.0\natives\jemalloc.dll.git
1⤵
- Suspicious use of WriteProcessMemory
PID:1876
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Expensive-2.0\natives\jemalloc.dll.git
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2724
- - 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\Expensive-2.0\natives\jemalloc.dll.git"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2672

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
f79983d1f9ba077469522b23f050e4de

SHA1
4b211737acd5b1e97e07df44782e31d6153ecd22

SHA256
7ea732ad12009f9b533ccbc20efee74b27ead116155e555b19f9bc6373f70ec5

SHA512
22c83065dfd523feafffcbe8b20016aef3cd9e509598848b30e508797443c594beee16860cbe97847601d70d1e45cdc0fc454d0e8b0407df19ec9273e755a2fb

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