96f856f4f92cded43f8d27003b39816bdfe9281254d4296a5e85d1a26ebdc42f

Analysis

max time kernel
150s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
27/01/2024, 07:22

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General

Target

2024-01-27_0cb8ebd1eb7399f6b84922baf0322765_cryptolocker.exe
Size

62KB
MD5

0cb8ebd1eb7399f6b84922baf0322765
SHA1

e880be8f6460795a326e8aa1aaa3eb4dc7eeb5f2
SHA256

96f856f4f92cded43f8d27003b39816bdfe9281254d4296a5e85d1a26ebdc42f
SHA512

48478a2d21974f13038b1081fa38f01060c174efa4bf563098f6c92238ad20570ec58510c300b51058be8a47be4ae4e3ea78b467074e81f47bba70b5ceecedb6
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5I52kGEO10Km2:6j+1NMOtEvwDpjr8ox8UDEy0Km2

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1640-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0008000000012254-11.dat	CryptoLocker_rule2
behavioral1/memory/1640-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2552-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2552-25-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1640-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0008000000012254-11.dat	CryptoLocker_set1
behavioral1/memory/1640-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2552-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2552-25-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/memory/1640-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x0008000000012254-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1640-15-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2552-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2552-25-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2552	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1640	2024-01-27_0cb8ebd1eb7399f6b84922baf0322765_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 1640 wrote to memory of 2552	1640	2024-01-27_0cb8ebd1eb7399f6b84922baf0322765_cryptolocker.exe	28
PID 1640 wrote to memory of 2552	1640	2024-01-27_0cb8ebd1eb7399f6b84922baf0322765_cryptolocker.exe	28
PID 1640 wrote to memory of 2552	1640	2024-01-27_0cb8ebd1eb7399f6b84922baf0322765_cryptolocker.exe	28
PID 1640 wrote to memory of 2552	1640	2024-01-27_0cb8ebd1eb7399f6b84922baf0322765_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-27_0cb8ebd1eb7399f6b84922baf0322765_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-27_0cb8ebd1eb7399f6b84922baf0322765_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1640
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2552

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
62KB

MD5
501ae87929f6776ad36c751ac68d1abf

SHA1
ae4adabc268fd001ae16679b77711ec23df50c88

SHA256
8d17135200347472e2808dc48b1d44c5aeb9a6a6dbc22e28586b4e1ea19fcb92

SHA512
10c35ebe1aa558e4922886ef29682d360e3afd3a9f5e3682530234d14e0c7d228ddab8b46bd464177d9fd2900ed46f708295b574b0a973291beb459ce03136e2

Download Submit
memory/1640-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1640-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1640-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1640-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1640-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2552-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2552-18-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2552-25-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download