c074202c2b43be6a01d82343d994dca412b94fbba709bb8cb183278df832d78e

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09/04/2024, 11:43

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General

Target

2024-04-09_a6b67298cbec8fe4c9c2596891eed0d5_cryptolocker.exe
Size

30KB
MD5

a6b67298cbec8fe4c9c2596891eed0d5
SHA1

490309770e32d4ed1db4bbd301a9b7e2037b38d0
SHA256

c074202c2b43be6a01d82343d994dca412b94fbba709bb8cb183278df832d78e
SHA512

341758d94df4c4afc20804891ff2349be34f36bde4d0594fa2075f3752ee6a8e6a241902f6d1ce812e4a84b77d666e1acdbecc0a03141f1278a97c785f937406
SSDEEP

384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgL:bG74zYcgT/Ekd0ryfjv

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2304-0-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c00000001224e-11.dat	CryptoLocker_rule2
behavioral1/memory/2304-16-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2784-17-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2784-28-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2784	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2304	2024-04-09_a6b67298cbec8fe4c9c2596891eed0d5_cryptolocker.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 2784	2304	2024-04-09_a6b67298cbec8fe4c9c2596891eed0d5_cryptolocker.exe	28
PID 2304 wrote to memory of 2784	2304	2024-04-09_a6b67298cbec8fe4c9c2596891eed0d5_cryptolocker.exe	28
PID 2304 wrote to memory of 2784	2304	2024-04-09_a6b67298cbec8fe4c9c2596891eed0d5_cryptolocker.exe	28
PID 2304 wrote to memory of 2784	2304	2024-04-09_a6b67298cbec8fe4c9c2596891eed0d5_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-09_a6b67298cbec8fe4c9c2596891eed0d5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-09_a6b67298cbec8fe4c9c2596891eed0d5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2304
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2784

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
30KB

MD5
81770da8128c3cbd150e328d384d440b

SHA1
b74f361bda1320bdff5d86740b9cf5603f7f6e4e

SHA256
1d4c973127524d4b30b2785b9116f936fd5211b8e56108851e337b7e1f7c68c9

SHA512
63a1a28f0ceeeea728199905820ee956dad00e9951c2f5014539d10a0114a1a2f5922407a5291d82cd73393016ab4516232b560bd4aa5510b15d34b4f3b08c67

Download Submit
memory/2304-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2304-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2304-3-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2304-2-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/2304-13-0x0000000002C20000-0x0000000002C2A000-memory.dmp

Filesize
40KB

Download
memory/2304-16-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2304-27-0x0000000002C20000-0x0000000002C2A000-memory.dmp

Filesize
40KB

Download
memory/2784-17-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2784-19-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2784-23-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2784-28-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download