b514abdc4ba54ead682a2bec1fa41138e881ca842a56cc598083c03985bf4a1a

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17/10/2024, 12:43

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General

Target

2024-10-17_03cdd5d5bc7ceeaa2742f647665ede2f_cryptolocker.exe
Size

125KB
MD5

03cdd5d5bc7ceeaa2742f647665ede2f
SHA1

862216fa35be48b96f54996f8050d317faf6716c
SHA256

b514abdc4ba54ead682a2bec1fa41138e881ca842a56cc598083c03985bf4a1a
SHA512

2c19af351f858c467c259ebd3b0211aee65271cab335817d80815cce3bf3f5577f96bfc89c135c127df3760f2791277119dfc53edfdc71d6e50b25ec5463dc3e
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp699GNtL1eE:AnBdOOtEvwDpj6za

Score

7^/10

discovery upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	2024-10-17_03cdd5d5bc7ceeaa2742f647665ede2f_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4956	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4132-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x0033000000023b70-13.dat	upx
behavioral2/memory/4132-18-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/4956-27-0x0000000000500000-0x000000000050F000-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	asih.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-17_03cdd5d5bc7ceeaa2742f647665ede2f_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4132 wrote to memory of 4956	4132	2024-10-17_03cdd5d5bc7ceeaa2742f647665ede2f_cryptolocker.exe	86
PID 4132 wrote to memory of 4956	4132	2024-10-17_03cdd5d5bc7ceeaa2742f647665ede2f_cryptolocker.exe	86
PID 4132 wrote to memory of 4956	4132	2024-10-17_03cdd5d5bc7ceeaa2742f647665ede2f_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-10-17_03cdd5d5bc7ceeaa2742f647665ede2f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-17_03cdd5d5bc7ceeaa2742f647665ede2f_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4132
- 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:4956

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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\Local\Temp\asih.exe

Filesize
125KB

MD5
de436d0b5f2413a8a68de37eabf66ca6

SHA1
b9e67ea25763cfcd3d9de55ae0d7f70091bd5458

SHA256
df9a882e11714465e358bef610250e73e4dfa6733bd0988b2cc408c504c52154

SHA512
6d87134788aa2d163bdd4bfe9ec3a75b7245e7a94e1237ab10217d6b4b1c8546a6a707f026bc87c79b4b42abba2db6b58190a94c5073a8968af1e8f576d7ab0b

Download Submit
memory/4132-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4132-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/4132-2-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/4132-3-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/4132-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4956-20-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/4956-21-0x0000000000860000-0x0000000000866000-memory.dmp

Filesize
24KB

Download
memory/4956-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download