37331f3a1e932ec988fd755e13d7460a9292e8bcc91585a5cdade42194f23355

Analysis

max time kernel
130s
max time network
140s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
05/03/2024, 10:40

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General

Target

2024-03-05_c19f127f7f6a93877f831c656db5d568_cryptolocker.exe
Size

77KB
MD5

c19f127f7f6a93877f831c656db5d568
SHA1

0e9fcd7c1af0e965570c4897cf4a72e2be9fa2cf
SHA256

37331f3a1e932ec988fd755e13d7460a9292e8bcc91585a5cdade42194f23355
SHA512

5e221ece8b50bd6fdb76086c3683bcb12289e3965cf952e30b45f2798b6a4a34c7d5e22700a4069dfc9a4ce1692084c614b9e68e3ad537a0fd5d92e36af50267
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfIufB:vCjsIOtEvwDpj5H9YvQd21

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012256-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012256-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2556	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2588	2024-03-05_c19f127f7f6a93877f831c656db5d568_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 2588 wrote to memory of 2556	2588	2024-03-05_c19f127f7f6a93877f831c656db5d568_cryptolocker.exe	28
PID 2588 wrote to memory of 2556	2588	2024-03-05_c19f127f7f6a93877f831c656db5d568_cryptolocker.exe	28
PID 2588 wrote to memory of 2556	2588	2024-03-05_c19f127f7f6a93877f831c656db5d568_cryptolocker.exe	28
PID 2588 wrote to memory of 2556	2588	2024-03-05_c19f127f7f6a93877f831c656db5d568_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-05_c19f127f7f6a93877f831c656db5d568_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-05_c19f127f7f6a93877f831c656db5d568_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2588
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2556

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\misid.exe

Filesize
77KB

MD5
8dbdaada56d4bfbea008eeefb75660c4

SHA1
902a7a4d54cc3c7db8e13aa3e251a3485e736d10

SHA256
c4f01b6ca86db764c526d92910adeba5a124cb581ae13012da81386a789bbaa8

SHA512
59d23fba3dd04ae64906be26da392c496869ec9fbc30408c355de35107576026ba306e534adaad6275085e2f8d6ea93982fd3a9d41b990ad2796fbf0045785ae

Download Submit
memory/2588-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2588-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2588-2-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download