bf20e2e16d473273f8d31cb60784ccca32bfd35c18d238b34d7bb5ace98ceafc

Analysis

max time kernel
137s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
18/02/2024, 00:47

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General

Target

2024-02-18_bd0d8577303e8579afa4f084e75a482f_cryptolocker.exe
Size

89KB
MD5

bd0d8577303e8579afa4f084e75a482f
SHA1

c20b060efaa07ec39939571c6c19c1824c0f0c7f
SHA256

bf20e2e16d473273f8d31cb60784ccca32bfd35c18d238b34d7bb5ace98ceafc
SHA512

cf5c36eecc81352ab18c4e7317d06d5cab38ab47706790a4b05c43f69e7d1109f52a0c0db3cd2d07c42f19ad86285f499582a42fb9d9d9392306f01f88719e58
SSDEEP

1536:vj+jsMQMOtEvwDpj5H8u8rBN6nqEZNi1OkQNpH5:vCjsIOtEvwDpj5H8zPsz

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023118-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023118-12.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-02-18_bd0d8577303e8579afa4f084e75a482f_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3620	misid.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4612 wrote to memory of 3620	4612	2024-02-18_bd0d8577303e8579afa4f084e75a482f_cryptolocker.exe	84
PID 4612 wrote to memory of 3620	4612	2024-02-18_bd0d8577303e8579afa4f084e75a482f_cryptolocker.exe	84
PID 4612 wrote to memory of 3620	4612	2024-02-18_bd0d8577303e8579afa4f084e75a482f_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-18_bd0d8577303e8579afa4f084e75a482f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_bd0d8577303e8579afa4f084e75a482f_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4612
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3620

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
89KB

MD5
45d919ac61c6da770283b02f0726fb74

SHA1
8245582ca6222874f44d0f126f1a14ff46b15821

SHA256
79118afadbc68cb1d471abedf5c901bd6f94d67b201d1a7b432b90bfd4f3ebf5

SHA512
eb0005123a3f1e8606453061015bd59276a5357102b2f00e4c18055530ee5af9a644fbd6dcd2288fb477fef0eba59077bba016ad787e0ff4f680ffacb524ccd2

Download Submit
memory/3620-18-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3620-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4612-0-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/4612-1-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/4612-2-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download