8ba2a8ce893e491d84de77fc54f2bc29136ae602cd31250830b209a1edc17e8b

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
27/05/2024, 04:48

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General

Target

2024-05-27_bb769447c688f057853276fed0e21130_cryptolocker.exe
Size

85KB
MD5

bb769447c688f057853276fed0e21130
SHA1

47d49111f3b88ded68ddadeadd5151d1fe73f1d1
SHA256

8ba2a8ce893e491d84de77fc54f2bc29136ae602cd31250830b209a1edc17e8b
SHA512

a70b7d96a4d37a880a6206c3eea839ed8b5f03a1d5aa7fb8ae4b3d0a05eb410c0b18463de3d9cf5bf5718f24f455f1ca3f2e509634edd1f575b7f9836e4f8d5d
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMrC+Z:TCjsIOtEvwDpj5HE/OUHnSMf

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1936-1-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000012279-11.dat	CryptoLocker_rule2
behavioral1/memory/2416-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1936-14-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2416-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1936-1-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c000000012279-11.dat	CryptoLocker_set1
behavioral1/memory/2416-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1936-14-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2416-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2416	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1936	2024-05-27_bb769447c688f057853276fed0e21130_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 1936 wrote to memory of 2416	1936	2024-05-27_bb769447c688f057853276fed0e21130_cryptolocker.exe	28
PID 1936 wrote to memory of 2416	1936	2024-05-27_bb769447c688f057853276fed0e21130_cryptolocker.exe	28
PID 1936 wrote to memory of 2416	1936	2024-05-27_bb769447c688f057853276fed0e21130_cryptolocker.exe	28
PID 1936 wrote to memory of 2416	1936	2024-05-27_bb769447c688f057853276fed0e21130_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-27_bb769447c688f057853276fed0e21130_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-27_bb769447c688f057853276fed0e21130_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2416

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
85KB

MD5
7803aff9825d6364b049c926666042c8

SHA1
ccc5e73991f3b252bb5b2db6c340e79d67404980

SHA256
2f9999ea0c26c99367c593cbb983c549a8c54ca43fabe07f574e9d547cd5a934

SHA512
1d55f741c06b3e66054d4584a6d6cbc79df2939c5f59a35564f022fb3539efb721bee25b5356739d68a675f94b06017434badfc142e4ec3159ceabd554fd54c6

Download Submit
memory/1936-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1936-2-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/1936-9-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1936-1-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1936-14-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2416-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2416-18-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2416-25-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2416-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download