737cb110d7d122ab80cb26f410821809ecb95f8cae3b251f7368ddd30e055b72

Analysis

max time kernel
150s
max time network
155s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
24-01-2024 11:31

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General

Target

2024-01-24_5620dea3bfd4f229bf29c571b4ced7f2_cryptolocker.exe
Size

39KB
MD5

5620dea3bfd4f229bf29c571b4ced7f2
SHA1

fbbd861ea00993064f3e04e2fa82b97d193940a7
SHA256

737cb110d7d122ab80cb26f410821809ecb95f8cae3b251f7368ddd30e055b72
SHA512

b36f215c9dcbc99f2c423dfd7aa35461a6f4aa071da438bd7b2accf7037f3d2e3fad9b7c9777291244082d21e151fd1767f8c08cfbafbfc08063f2467e23fc9a
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqhMWKaj9Yr:6j+1NMOtEvwDpjrobCr

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1064-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000012185-11.dat	CryptoLocker_rule2
behavioral1/memory/2944-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1064-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2944-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1064-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000012185-11.dat	CryptoLocker_set1
behavioral1/memory/2944-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1064-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2944-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/memory/1064-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000b000000012185-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2944-16-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1064-15-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2944-26-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2944	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1064	2024-01-24_5620dea3bfd4f229bf29c571b4ced7f2_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 1064 wrote to memory of 2944	1064	2024-01-24_5620dea3bfd4f229bf29c571b4ced7f2_cryptolocker.exe	28
PID 1064 wrote to memory of 2944	1064	2024-01-24_5620dea3bfd4f229bf29c571b4ced7f2_cryptolocker.exe	28
PID 1064 wrote to memory of 2944	1064	2024-01-24_5620dea3bfd4f229bf29c571b4ced7f2_cryptolocker.exe	28
PID 1064 wrote to memory of 2944	1064	2024-01-24_5620dea3bfd4f229bf29c571b4ced7f2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-24_5620dea3bfd4f229bf29c571b4ced7f2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-24_5620dea3bfd4f229bf29c571b4ced7f2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1064
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2944

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
39KB

MD5
0e2165f136b0301ee750eecbaee2278f

SHA1
0c81bdfe876a2d89d0a506326beec9021974ce6d

SHA256
de18a81df59bfc6f6895ad2d3ef67575de8b5c4ee72471bbda4c2526e5e3b2c7

SHA512
377d48b3ce62c6c5cd548d6073e327166fe62f08dfa56ccba7ae374fa5cb0fb8a1570a9609a234c951af1aeb2866dd1debef29e6bd1fc0f623f8208d4a83dfef

Download Submit
memory/1064-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1064-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1064-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1064-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1064-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2944-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2944-18-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2944-19-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2944-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download