ab3e2ce039ff5b197180d69055ebf5b9b46d0705f6737be170ab7c24bc1ab2d2

Analysis

max time kernel
131s
max time network
150s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
27/01/2024, 19:36

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General

Target

2024-01-27_a103853a08b84eaafb405fe29784786e_cryptolocker.exe
Size

125KB
MD5

a103853a08b84eaafb405fe29784786e
SHA1

c7046b07b62bf00ecb1d9f55c5f0c0628edbdc3a
SHA256

ab3e2ce039ff5b197180d69055ebf5b9b46d0705f6737be170ab7c24bc1ab2d2
SHA512

f48b7d43fc88343dabe424fac882d32692e59989c3ba15aa2aaf82917c0b531ca77d959341c17255b2150f20fbbae72dd4f2fb23203e938a3eb62aaae9b5233e
SSDEEP

1536:gUj+AIMOtEvwDpjNbwQEIPlemUhYwkkxGBpBQ:vCA9OtEvwDpjm

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014227-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014227-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1080	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2244	2024-01-27_a103853a08b84eaafb405fe29784786e_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 2244 wrote to memory of 1080	2244	2024-01-27_a103853a08b84eaafb405fe29784786e_cryptolocker.exe	19
PID 2244 wrote to memory of 1080	2244	2024-01-27_a103853a08b84eaafb405fe29784786e_cryptolocker.exe	19
PID 2244 wrote to memory of 1080	2244	2024-01-27_a103853a08b84eaafb405fe29784786e_cryptolocker.exe	19
PID 2244 wrote to memory of 1080	2244	2024-01-27_a103853a08b84eaafb405fe29784786e_cryptolocker.exe	19

C:\Users\Admin\AppData\Local\Temp\2024-01-27_a103853a08b84eaafb405fe29784786e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-27_a103853a08b84eaafb405fe29784786e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2244
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1080

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
125KB

MD5
670f99bc73692558e39f651c9465763e

SHA1
c6559b83c6bbaf0e693e8605fc136d24a99659b8

SHA256
c917e4aeddef50d0100e5e90269279577cafc1f0dbc66daacd23880d5b76029d

SHA512
9121dc4c0d214138f1aa089ab4c270ec7e702af53bd464e823cf816f2011040c93ebcce0dc1583643cd1b6239aa88c452dc9ae47388429426fdb931a1a3925db

Download Submit
memory/1080-16-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/1080-15-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2244-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2244-1-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2244-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download