1573a30d96795616fe174b2fc757bb84e298e67818c532fe513b5fa5c682897c

Analysis

max time kernel
151s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
19/03/2024, 16:34

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General

Target

2024-03-19_41383e70b3dcb2c9abb1ab916cc880f4_cryptolocker.exe
Size

41KB
MD5

41383e70b3dcb2c9abb1ab916cc880f4
SHA1

702efa2ee60853078164dfc4c186ad0f26503180
SHA256

1573a30d96795616fe174b2fc757bb84e298e67818c532fe513b5fa5c682897c
SHA512

a0a3c9e54112cd88468754d4b8a9229e00c279771e2ff61be10b55569c170c7f3c6700fa65e9e033eac49f6caf42a782fa16402e090df79d8bdfd3c6a4f0a825
SSDEEP

768:bAvJCYOOvbRPDEgXrNekd7l94i3py/yY/Jto:bAvJCF+RQgJeab4sy/lc

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023321-12.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-1-5-21-1904519900-954640453-4250331663-1000\Control Panel\International\Geo\Nation	2024-03-19_41383e70b3dcb2c9abb1ab916cc880f4_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
1620	demka.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 1840 wrote to memory of 1620	1840	2024-03-19_41383e70b3dcb2c9abb1ab916cc880f4_cryptolocker.exe	97
PID 1840 wrote to memory of 1620	1840	2024-03-19_41383e70b3dcb2c9abb1ab916cc880f4_cryptolocker.exe	97
PID 1840 wrote to memory of 1620	1840	2024-03-19_41383e70b3dcb2c9abb1ab916cc880f4_cryptolocker.exe	97

C:\Users\Admin\AppData\Local\Temp\2024-03-19_41383e70b3dcb2c9abb1ab916cc880f4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-19_41383e70b3dcb2c9abb1ab916cc880f4_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1840
- C:\Users\Admin\AppData\Local\Temp\demka.exe
  "C:\Users\Admin\AppData\Local\Temp\demka.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:1620

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4056 --field-trial-handle=3084,i,11997299123381683778,5904351605020331957,262144 --variations-seed-version /prefetch:8
1⤵
PID:1032

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\demka.exe

Filesize
41KB

MD5
aeba1c3594f4df44680ae5156cb2c9d0

SHA1
fc0f3a0ef89b9c650a177474744ab20d1b87ce85

SHA256
b96b75bb38fce660f2e97f6db6d3b316df5bfeab86b5b1ef13947286040e8451

SHA512
b11844b806597d546cc6c58719ff8aee52cb3a016a14479249fa5942bf180f9ed6b3bee9719b565e9e7cc01243fd52902b9426b2e425e0220b42b1bede020ffb

Download Submit
memory/1620-19-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/1840-0-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/1840-1-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/1840-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download