50e2bd62e79dae70cabfac87288c82db1a7d2221cce5bf41caec3f0c15c10d74

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
21-05-2024 15:46

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General

Target

2024-05-21_f3daad64cedcd0d1bee832db6d75757c_cryptolocker.exe
Size

50KB
MD5

f3daad64cedcd0d1bee832db6d75757c
SHA1

853c2e2f41b2bd51df8ee2b61a562a8a1624f5a0
SHA256

50e2bd62e79dae70cabfac87288c82db1a7d2221cce5bf41caec3f0c15c10d74
SHA512

278cb9cc8e6c1b6cd0603848590e07e6d9a87cec649480b4fd69331b16fa9208e204a74b7d2bc1b6447bea539724da943df9a7dabfe10cc35dda6a08c9971dae
SSDEEP

768:P6LsoVEeegiZPvEhHSP+gp/QtOOtEvwDpjBBMLZdzuqpXsiE8Wq/DpkcAY5E:P6Q0ElP6G+gJQMOtEvwDpjB8WMlf/5E

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2128-8-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2
behavioral1/memory/2128-13-0x00000000005D0000-0x00000000005DB000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2600-24-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2128-8-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_set1
behavioral1/memory/2128-13-0x00000000005D0000-0x00000000005DB000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2600-24-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

2600 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-21_f3daad64cedcd0d1bee832db6d75757c_cryptolocker.exe

pid process

2128 2024-05-21_f3daad64cedcd0d1bee832db6d75757c_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2600	asih.exe

pid	process
2128	2024-05-21_f3daad64cedcd0d1bee832db6d75757c_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-21_f3daad64cedcd0d1bee832db6d75757c_cryptolocker.exe

description	pid	process	target process
PID 2128 wrote to memory of 2600	2128	2024-05-21_f3daad64cedcd0d1bee832db6d75757c_cryptolocker.exe	asih.exe
PID 2128 wrote to memory of 2600	2128	2024-05-21_f3daad64cedcd0d1bee832db6d75757c_cryptolocker.exe	asih.exe
PID 2128 wrote to memory of 2600	2128	2024-05-21_f3daad64cedcd0d1bee832db6d75757c_cryptolocker.exe	asih.exe
PID 2128 wrote to memory of 2600	2128	2024-05-21_f3daad64cedcd0d1bee832db6d75757c_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-21_f3daad64cedcd0d1bee832db6d75757c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-21_f3daad64cedcd0d1bee832db6d75757c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2128

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:2600

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\asih.exe

Filesize
50KB

MD5
396870fcaa99a39389f5acaf8cf58288

SHA1
73daae13554b310880615025f89589d1eed512d2

SHA256
2cd49933bc678938743f865bfaa78ffba116c2fa287943ecb0fd31c7145971a8

SHA512
eb936ced1d9795ed29885b740ed871aea914685119fd239ec4852cfc49856146043532dea5f7f1f714e5daf7f9e5f48695e695c71269c06d440a8120f170d810

Download Submit
memory/2128-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2128-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2128-8-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2128-1-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2128-13-0x00000000005D0000-0x00000000005DB000-memory.dmp

Filesize
44KB

Download
memory/2600-17-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2600-25-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2600-24-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download