b910b63a9237bff2e16e1ad2371e2a35c82a6894f8aa037310dc27036e48080e

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
13/03/2024, 21:26

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General

Target

2024-03-13_12f296a88b9f54bc2100c11b32d87664_cryptolocker.exe
Size

81KB
MD5

12f296a88b9f54bc2100c11b32d87664
SHA1

93a1e396ad4e61e26459d7f49c440fba1d573fd8
SHA256

b910b63a9237bff2e16e1ad2371e2a35c82a6894f8aa037310dc27036e48080e
SHA512

5877fd06855180776b8dbd8ec7b17bb05259ad1868befc5dfcdbf4e39747ac960a5708d6922ea0d8f0d461904de3f0c44a7c943089dd98d9edb95e93b5fcbd58
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMW83:TCjsIOtEvwDpj5HE/OUHnSMn

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2392-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b0000000126ab-11.dat	CryptoLocker_rule2
behavioral1/memory/2392-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3056-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3056-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2392-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b0000000126ab-11.dat	CryptoLocker_set1
behavioral1/memory/2392-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3056-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3056-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3056	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2392	2024-03-13_12f296a88b9f54bc2100c11b32d87664_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 2392 wrote to memory of 3056	2392	2024-03-13_12f296a88b9f54bc2100c11b32d87664_cryptolocker.exe	28
PID 2392 wrote to memory of 3056	2392	2024-03-13_12f296a88b9f54bc2100c11b32d87664_cryptolocker.exe	28
PID 2392 wrote to memory of 3056	2392	2024-03-13_12f296a88b9f54bc2100c11b32d87664_cryptolocker.exe	28
PID 2392 wrote to memory of 3056	2392	2024-03-13_12f296a88b9f54bc2100c11b32d87664_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-13_12f296a88b9f54bc2100c11b32d87664_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-13_12f296a88b9f54bc2100c11b32d87664_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2392
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3056

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
81KB

MD5
422d9dfb9c99eed516ff59197dc01d4d

SHA1
4cc49bed441b59bbf2a114a4d4ea1c519fd3a0de

SHA256
4f61bf21871a79cfc2242eb8b15ddb093f078f42af3fcff00d7a8a71ab4cbc67

SHA512
e5aa3316ec49a316453d5ce9dac210dddd14fd91537715dca53dfd2eb8a29fa6ec31704a7648845ec956de118ade9d5b33e61995215f81e6f9ffe25644390997

Download Submit
memory/2392-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2392-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2392-2-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2392-3-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2392-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/3056-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/3056-18-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/3056-20-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/3056-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download