8153c55c5ccce4cfbad3e5c386522fca13ea914dfcda3e692ebf31c62b614ffe

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
10/06/2024, 11:47

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General

Target

2024-06-10_a728ad1918ee5ca84d1bde3b1a9df97c_cryptolocker.exe
Size

34KB
MD5

a728ad1918ee5ca84d1bde3b1a9df97c
SHA1

e58af9a70b4e6dca4073cb393be0c70a297c11b2
SHA256

8153c55c5ccce4cfbad3e5c386522fca13ea914dfcda3e692ebf31c62b614ffe
SHA512

2c9eea6b1163b1f801de949acfd7c0680bb9b7f2658fba35d95113515534c79f509aaab7e00781c39e63d957620ea3130e62e97207f9208daad6f9191587d5fa
SSDEEP

384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGXvJF30:bG74zYcgT/Ekd0ryfjkbE

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1848-0-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000014abe-11.dat	CryptoLocker_rule2
behavioral1/memory/1848-15-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2884-17-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2884-26-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2884	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1848	2024-06-10_a728ad1918ee5ca84d1bde3b1a9df97c_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 1848 wrote to memory of 2884	1848	2024-06-10_a728ad1918ee5ca84d1bde3b1a9df97c_cryptolocker.exe	28
PID 1848 wrote to memory of 2884	1848	2024-06-10_a728ad1918ee5ca84d1bde3b1a9df97c_cryptolocker.exe	28
PID 1848 wrote to memory of 2884	1848	2024-06-10_a728ad1918ee5ca84d1bde3b1a9df97c_cryptolocker.exe	28
PID 1848 wrote to memory of 2884	1848	2024-06-10_a728ad1918ee5ca84d1bde3b1a9df97c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-10_a728ad1918ee5ca84d1bde3b1a9df97c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-10_a728ad1918ee5ca84d1bde3b1a9df97c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1848
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2884

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
34KB

MD5
40d30d8bd1e84b3b2d096c1e3782ae45

SHA1
5718ea8a6ce0543a73c128dfd4780d2ece186198

SHA256
e61cb4dea67ff3144269fac4bf2cea4a73b7b52526f1a3019f6d5a37312c901d

SHA512
be6963a5a4301784e7731b9d57dc3beecf4e2c769378f27f6d281997f592ae3aedc82371048e2f73546c5c62de42d58152b4e5385967b1a9f31643cfb45308df

Download Submit
memory/1848-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/1848-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/1848-2-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/1848-3-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/1848-15-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2884-17-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2884-18-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2884-25-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2884-26-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download