5dff67bb1f2765e73ba68bf2987900086a5a95ff598953c2541e255b6e32c4fb

Analysis

max time kernel
133s
max time network
152s
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, 13:48

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General

Target

2024-02-18_bed62b78fedf1552d53232c04e77ab96_cryptolocker.exe
Size

36KB
MD5

bed62b78fedf1552d53232c04e77ab96
SHA1

e16ff11e8044515191c73b554dc57301ccdd209e
SHA256

5dff67bb1f2765e73ba68bf2987900086a5a95ff598953c2541e255b6e32c4fb
SHA512

e2869838057cf25d646cb45575d58f73d3f0159a1271f1241de7f2349a1f535af42bba09365afdd24252f448632df2eb935d6d873d830d64bf93ea8d52727b8b
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFCF:X6QFElP6n+gJQMOtEvwDpjBmzDUF

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023154-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023154-12.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_bed62b78fedf1552d53232c04e77ab96_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4060	asih.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 1232 wrote to memory of 4060	1232	2024-02-18_bed62b78fedf1552d53232c04e77ab96_cryptolocker.exe	86
PID 1232 wrote to memory of 4060	1232	2024-02-18_bed62b78fedf1552d53232c04e77ab96_cryptolocker.exe	86
PID 1232 wrote to memory of 4060	1232	2024-02-18_bed62b78fedf1552d53232c04e77ab96_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-02-18_bed62b78fedf1552d53232c04e77ab96_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_bed62b78fedf1552d53232c04e77ab96_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1232
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4060

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\asih.exe

Filesize
36KB

MD5
e4ed34d34d1e29ac1a1488fc600b781b

SHA1
ff249fdcf27a8b802d8c30043b52a85c84ae2ef4

SHA256
c0ff0fa6e537b3cb49397e3dbe0caa0e6c2ed2de044cf761c6c6c01c01a1c962

SHA512
59dd7e95adeeb1b7eb1812d545691a1007a685b637ee56150f7bab6b9b2fdd51e75f1b8b5492efbaa1f46c68135b831083e93cc472266aff5cbf566d1f1f32cc

Download Submit
memory/1232-0-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/1232-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/1232-2-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/4060-17-0x0000000000680000-0x0000000000686000-memory.dmp

Filesize
24KB

Download
memory/4060-19-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download