f79d200222c9a03d40cc496551e8022a782edbac77c77bfb0041b81137559b5b

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
07/05/2024, 03:52

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General

Target

2024-05-07_eb8b20d621d9e5658ac72d037046de0f_cryptolocker.exe
Size

46KB
MD5

eb8b20d621d9e5658ac72d037046de0f
SHA1

1173e4490ef1514546eaed105779b18f57032474
SHA256

f79d200222c9a03d40cc496551e8022a782edbac77c77bfb0041b81137559b5b
SHA512

e2a5f0e6634b3ce21392df55a6835d4a8261e97d7cda4e229d8dba22d4011408860d5c0946ffb79c49e46525e342b27d068bbdcfa7db2db1d2fff90d5c5c8ee1
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPo1:P6QFElP6k+MRQMOtEvwDpjBQpVXz1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/1948-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000014b27-11.dat	CryptoLocker_rule2
behavioral1/memory/1948-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3040-19-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/1948-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000014b27-11.dat	CryptoLocker_set1
behavioral1/memory/1948-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3040-19-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3040	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1948	2024-05-07_eb8b20d621d9e5658ac72d037046de0f_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 1948 wrote to memory of 3040	1948	2024-05-07_eb8b20d621d9e5658ac72d037046de0f_cryptolocker.exe	28
PID 1948 wrote to memory of 3040	1948	2024-05-07_eb8b20d621d9e5658ac72d037046de0f_cryptolocker.exe	28
PID 1948 wrote to memory of 3040	1948	2024-05-07_eb8b20d621d9e5658ac72d037046de0f_cryptolocker.exe	28
PID 1948 wrote to memory of 3040	1948	2024-05-07_eb8b20d621d9e5658ac72d037046de0f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-07_eb8b20d621d9e5658ac72d037046de0f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-07_eb8b20d621d9e5658ac72d037046de0f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1948
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3040

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
46KB

MD5
d2ae6fc1815a859e00323bde9b4d33cb

SHA1
d57f662be40d143124df232bfe706f94e51da717

SHA256
44c4d9927c4bdcce6c6070197ee4dde54ca9d09a54d647965e256f85353a4f1d

SHA512
9832fb35cb4f97e0b183f7b020a11dd2cf20cda5607958f6c5f14ca1abbcac24523d0f5e03f9ca2f8a3333e767a43b8643115c4a581ac70127040471e8390969

Download Submit
memory/1948-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1948-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1948-2-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/1948-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1948-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1948-13-0x0000000002BC0000-0x0000000002BCB000-memory.dmp

Filesize
44KB

Download
memory/3040-19-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3040-18-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/3040-20-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download