55f4cf3f8a424005a2e57ac0650cb6d28ee60a14a549d45e90f05d404775eed6

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
12/06/2024, 23:41

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General

Target

2024-06-12_e6b06e58746cb4aad6039622f2d61e10_cryptolocker.exe
Size

87KB
MD5

e6b06e58746cb4aad6039622f2d61e10
SHA1

e465e1f703c27e72e36a76ebbb037b7b1bf58b96
SHA256

55f4cf3f8a424005a2e57ac0650cb6d28ee60a14a549d45e90f05d404775eed6
SHA512

4aa94a511367a4a5f1e6bb30dfe4c690a6483bfded8a7de64cb268322fca0c9bb28f843f30687d7ddcdb3637a9c246be5659827a76ffb06e5839393fddda0241
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVNl6aS:V6a+pOtEvwDpjvpu

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000600000002327b-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000600000002327b-12.dat	CryptoLocker_set1

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-1-5-21-2080292272-204036150-2159171770-1000\Control Panel\International\Geo\Nation	2024-06-12_e6b06e58746cb4aad6039622f2d61e10_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1216	asih.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3692 wrote to memory of 1216	3692	2024-06-12_e6b06e58746cb4aad6039622f2d61e10_cryptolocker.exe	81
PID 3692 wrote to memory of 1216	3692	2024-06-12_e6b06e58746cb4aad6039622f2d61e10_cryptolocker.exe	81
PID 3692 wrote to memory of 1216	3692	2024-06-12_e6b06e58746cb4aad6039622f2d61e10_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-06-12_e6b06e58746cb4aad6039622f2d61e10_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-12_e6b06e58746cb4aad6039622f2d61e10_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3692
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1216

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
87KB

MD5
42692c9252b69f3139daff13e0659f41

SHA1
971fe62313704bd755457fa995ac07e4e1bc7ff5

SHA256
145eb2ce2b76db397334d5d77e7e2429102ee7813f380f89d2c1768642f7dc5e

SHA512
576cf6a4d5a66855ee7bf72347caef868be5a64901cd06270cbacb225718076c2643400a894cec5fb9e88541a127e8bfa94d373d3f93c0899156a262976ab397

Download Submit
memory/3692-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3692-8-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3692-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download