98227b01e4f4fe86cc2ad3266d48c7e2956ff25849f02dc8d8b609bf0187bb05

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-10-2024 08:23

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General

Target

2024-10-31_2cc3a29e16ec4ba79428cf465f9d201b_cryptolocker.exe
Size

69KB
MD5

2cc3a29e16ec4ba79428cf465f9d201b
SHA1

7f3a088c1f4d1299ca9a1b52b6f5a103c2175d71
SHA256

98227b01e4f4fe86cc2ad3266d48c7e2956ff25849f02dc8d8b609bf0187bb05
SHA512

95ca23b89670f576e68a5d5da3b4491afbc9b78583635c1d9d07e25f8448eaeaed933a8491550e20394213be63c41e824033286eb378c498601802db10cb7f02
SSDEEP

1536:P8mnK6QFElP6n+gymddpMOtEvwDpjYibAoQRn:1nK6a+qdOOtEvwDpjm

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

Processes:

2024-10-31_2cc3a29e16ec4ba79428cf465f9d201b_cryptolocker.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	2024-10-31_2cc3a29e16ec4ba79428cf465f9d201b_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid	Process
1144	asih.exe

UPX packed file 4 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/2596-0-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/files/0x0008000000023c92-13.dat	upx
behavioral2/memory/2596-17-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/memory/1144-26-0x0000000000500000-0x000000000050F311-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

Processes:

2024-10-31_2cc3a29e16ec4ba79428cf465f9d201b_cryptolocker.exeasih.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-31_2cc3a29e16ec4ba79428cf465f9d201b_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-10-31_2cc3a29e16ec4ba79428cf465f9d201b_cryptolocker.exe

description	pid	Process	procid_target
PID 2596 wrote to memory of 1144	2596	2024-10-31_2cc3a29e16ec4ba79428cf465f9d201b_cryptolocker.exe	84
PID 2596 wrote to memory of 1144	2596	2024-10-31_2cc3a29e16ec4ba79428cf465f9d201b_cryptolocker.exe	84
PID 2596 wrote to memory of 1144	2596	2024-10-31_2cc3a29e16ec4ba79428cf465f9d201b_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-10-31_2cc3a29e16ec4ba79428cf465f9d201b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-31_2cc3a29e16ec4ba79428cf465f9d201b_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2596
- 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:1144

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
69KB

MD5
5804ccdfede39263ed7b2210398db942

SHA1
62739a78e5011cb409a15de8a287210f061f2595

SHA256
968b038631f1c2be3e2e3c3eaaee913009ead89c17ee62a585f51a82b11ad92a

SHA512
aab112fb6e4d538782ac6c4bc13207db04722a9b19769415ebb2ae4a60f55a1219c9f0234d7c65ae6e3bf747dc6a6e1fdadd249d160c8ee01fe1ca03e009e597

Download Submit
memory/1144-19-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/1144-25-0x0000000000840000-0x0000000000846000-memory.dmp

Filesize
24KB

Download
memory/1144-26-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2596-0-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2596-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2596-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2596-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2596-17-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download