1c5945ba631e642a275fb2b967c15a047b50640bb8d71908387d90074ef3bbdd

Analysis

max time kernel
102s
max time network
19s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-09-2024 23:22

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General

Target

ChaosRansomwareBuilderVersion4-main/Src Code/CustomWindowsForm/BlackForm.Designer.cs
Size

39KB
MD5

f98d1b02d270337f4ee19d9b84be3be6
SHA1

75e1b501cb93de121c56b034004525547a488a2c
SHA256

9a1bb05582612566940f20ac7f553c6b41265bed4a5f3c829310dfc512ac82d1
SHA512

66f159acc3228b754c09c1a4ba091b35620a9fc22bf848266ceb4e9cf627d6bf5bc17007cf1162392f9d73578a54f4423eeb22d3b4c2f8e1f4ba5f8fa860b69d
SSDEEP

768:aWK1mkTKny4b6XCIGuHaweQnMql1GMpL1oI4r+NzLfUhUB:a/1mkTKnym6XCIVaEDNzLfUhUB

Score

3^/10

discovery

Malware Config

Signatures

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000_Classes\Local Settings	cmd.exe

Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs

pid	Process
2576	AcroRd32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2576	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2576	AcroRd32.exe
2576	AcroRd32.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 904 wrote to memory of 2576	904	cmd.exe	30
PID 904 wrote to memory of 2576	904	cmd.exe	30
PID 904 wrote to memory of 2576	904	cmd.exe	30
PID 904 wrote to memory of 2576	904	cmd.exe	30

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\ChaosRansomwareBuilderVersion4-main\Src Code\CustomWindowsForm\BlackForm.Designer.cs"
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:904
- 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\ChaosRansomwareBuilderVersion4-main\Src Code\CustomWindowsForm\BlackForm.Designer.cs"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: CmdExeWriteProcessMemorySpam
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  PID:2576

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

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
2df32fc447e30ebc14f52412b0ad70eb

SHA1
0ecdf7225651b1a76b91e36bf91bfb04ffed1151

SHA256
8a3acbb978a24428fd022e50e981d6bf387974cd2bd8c03d508aa0119281a822

SHA512
2b0573aa1f7d11da523b5b1d103ad0cc771689b0f4056559ee52d4f24629b3128d12caf2290871ea9a45dd17c2f40214d6d5b486e00a0e5c80c8eb22e6ab4057

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