8ced0cf1c98838aa210318ac3e2ab40cbfa3e42f276aaff86fa79405fd341405

Analysis

max time kernel
132s
max time network
139s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12/10/2024, 03:04

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General

Target

2024-10-12_ab0616a8c2af2dca4b77598b13a4b3d6_cryptolocker.exe
Size

75KB
MD5

ab0616a8c2af2dca4b77598b13a4b3d6
SHA1

d0d18ad93dc84fbd20af6a266c573c063483be7e
SHA256

8ced0cf1c98838aa210318ac3e2ab40cbfa3e42f276aaff86fa79405fd341405
SHA512

bf4ca836c1f9a9a406e2355b8bc29f808ffbddd27ea76489fa05c41a28ac488d2c7964cec99e9e4af661e78402c15afe68c85d16a660320e2454cf56a6c06852
SSDEEP

1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHsal81Gv:1nK6a+qdOOtEvwDpjm

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1652	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2028	2024-10-12_ab0616a8c2af2dca4b77598b13a4b3d6_cryptolocker.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2028-8-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/files/0x000c0000000122ce-11.dat	upx
behavioral1/memory/2028-12-0x0000000000590000-0x00000000005A0000-memory.dmp	upx
behavioral1/memory/1652-16-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/memory/1652-26-0x0000000000500000-0x000000000050F311-memory.dmp	upx

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 2 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	2024-10-12_ab0616a8c2af2dca4b77598b13a4b3d6_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2028 wrote to memory of 1652	2028	2024-10-12_ab0616a8c2af2dca4b77598b13a4b3d6_cryptolocker.exe	31
PID 2028 wrote to memory of 1652	2028	2024-10-12_ab0616a8c2af2dca4b77598b13a4b3d6_cryptolocker.exe	31
PID 2028 wrote to memory of 1652	2028	2024-10-12_ab0616a8c2af2dca4b77598b13a4b3d6_cryptolocker.exe	31
PID 2028 wrote to memory of 1652	2028	2024-10-12_ab0616a8c2af2dca4b77598b13a4b3d6_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-10-12_ab0616a8c2af2dca4b77598b13a4b3d6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_ab0616a8c2af2dca4b77598b13a4b3d6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2028
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1652

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

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Downloads

\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
76KB

MD5
1d587df7686ebc0b1596dfcebdcc9c72

SHA1
8cd2d9a9579de163bbf0cf83f7155e437202f7e9

SHA256
73808c97cdbd35916bbeea1c3b25d9b1e2b41d8087c90ab9a58eb17bc9f5f597

SHA512
aeb5c454581276ce91a0485d1c6a948317d46ce868c259a531b01b174366e383320469b52e9b226753ce41ce02fc49be216d4c30c8e32b21725f4b42bc8525d9

Download Submit
memory/1652-16-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/1652-25-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/1652-18-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1652-26-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2028-1-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2028-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2028-8-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2028-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2028-12-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download