32542cd30d065d7ad4264e4fe285a6aeea1d3afbcd7ed6c4b6ba1bb8544ebd56

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
14/02/2024, 13:53

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General

Target

2024-02-14_4c3f5ccad3f7731cf6203865f422cb86_cryptolocker.exe
Size

47KB
MD5

4c3f5ccad3f7731cf6203865f422cb86
SHA1

a2a6daacddd99b6e1aa838e4d4f2c6145695df5a
SHA256

32542cd30d065d7ad4264e4fe285a6aeea1d3afbcd7ed6c4b6ba1bb8544ebd56
SHA512

257ef900d7681b21b33973792cc4aba7223664fb5a7b0310f6cb47bdc0c0f9cee35bafed3a22e397862c36a27c09e1d0edc1ecf1170efc4514a00a4a1bab09f8
SSDEEP

384:icX+ni9VCr5nQI021q4VQBqURYp055TOtOOtEvwDpjqIGR/hHi7/OlI0G/3lQIqf:XS5nQJ24LR1bytOOtEvwDpjNbP/3lHO

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1964-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x00080000000120f8-11.dat	CryptoLocker_rule2
behavioral1/memory/1964-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1504-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1504-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/1964-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1504-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1504-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/memory/1964-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x00080000000120f8-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1964-14-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1504-16-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1504-26-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
1504	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1964	2024-02-14_4c3f5ccad3f7731cf6203865f422cb86_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 1964 wrote to memory of 1504	1964	2024-02-14_4c3f5ccad3f7731cf6203865f422cb86_cryptolocker.exe	28
PID 1964 wrote to memory of 1504	1964	2024-02-14_4c3f5ccad3f7731cf6203865f422cb86_cryptolocker.exe	28
PID 1964 wrote to memory of 1504	1964	2024-02-14_4c3f5ccad3f7731cf6203865f422cb86_cryptolocker.exe	28
PID 1964 wrote to memory of 1504	1964	2024-02-14_4c3f5ccad3f7731cf6203865f422cb86_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-14_4c3f5ccad3f7731cf6203865f422cb86_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_4c3f5ccad3f7731cf6203865f422cb86_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1964
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1504

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
48KB

MD5
851704f24dad6245a8ca8389071cbed8

SHA1
bef25a4db72a612fcb147400fb1363e0d5d424e8

SHA256
a925764530110b298a45a4ddcf8cb251ab680ad696e52cc137755e9b6726cf0e

SHA512
4307ebf8c97c918d60042bbb0ba30f06a76e062654fb572486b76881d877ab6801c7fc8e1eaf4b6d0762ecfebb1c0c3b112b0c66e79fc75847f3a9e40df7d423

Download Submit
memory/1504-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1504-18-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/1504-20-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1504-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1964-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1964-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1964-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1964-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1964-14-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download