b16fe0f6880b0b7e06f909e5f0362ffe09118713a4abe1581b736fbfde358005

Analysis

max time kernel
133s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
10/05/2024, 17:29

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General

Target

2024-05-10_9b3af18b70ca363c56c85b96df68b802_cryptolocker.exe
Size

32KB
MD5

9b3af18b70ca363c56c85b96df68b802
SHA1

7c9f724f8a4d62ef8e6c12f020fec9d8a13144e9
SHA256

b16fe0f6880b0b7e06f909e5f0362ffe09118713a4abe1581b736fbfde358005
SHA512

716b9fcbae4a382f66427f96cc84009c5f2318fe8ba098a193eecd90750487e8df5f9ea9f6896f84894c18aa46427625e22f7ed338b9d5bb89cb695646ef1a5a
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5j9:bxNrC7kYo1Fxf2rYP9

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023412-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 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-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation	2024-05-10_9b3af18b70ca363c56c85b96df68b802_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation	pissa.exe

Executes dropped EXE 1 IoCs

pid	Process
4236	pissa.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 1324 wrote to memory of 4236	1324	2024-05-10_9b3af18b70ca363c56c85b96df68b802_cryptolocker.exe	84
PID 1324 wrote to memory of 4236	1324	2024-05-10_9b3af18b70ca363c56c85b96df68b802_cryptolocker.exe	84
PID 1324 wrote to memory of 4236	1324	2024-05-10_9b3af18b70ca363c56c85b96df68b802_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-05-10_9b3af18b70ca363c56c85b96df68b802_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-10_9b3af18b70ca363c56c85b96df68b802_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1324
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:4236

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\pissa.exe

Filesize
33KB

MD5
8dcebde27af274e0f0369bed5e3051d2

SHA1
e618bba8373623d1290952e6fa666749b5cd27e5

SHA256
2a4dfd2f7ec331cfa8f5cd0e513b59d53da04d5555529ad38455e10cd5249476

SHA512
6f7f59342780195f6188e249e0a7cb35ba2cd06d91e194bd8629df7bc3c1380fa3d2059bfadc5f0ff28959e253824cd14288cab33445892aa64a9ae1f73c0fdc

Download Submit
C:\Users\Admin\AppData\Local\Temp\pissec.exe

Filesize
261B

MD5
11bed1c06d8f4680de5154405be20365

SHA1
9c3095f1aa0b02924c23592d1e86673bb0081ca1

SHA256
bcc0582f122db6e61d2aa06628275f5b882c01ca037699427d0f68e48d744666

SHA512
050bb38ff33ab7e8e8aa647cffb26d2b0a54074340e79f0acf0db8f076c421505f1e4c1ce169d55aeacd4085ce258a78d24327c9393650642963beb130517da8

Download Submit
memory/1324-0-0x0000000002150000-0x0000000002156000-memory.dmp

Filesize
24KB

Download
memory/1324-1-0x0000000002300000-0x0000000002306000-memory.dmp

Filesize
24KB

Download
memory/1324-8-0x0000000002150000-0x0000000002156000-memory.dmp

Filesize
24KB

Download
memory/4236-17-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4236-23-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download