da0a56c9848040b0845b537e168650b32bb0049cf3de890d1d17b30d6e5eeb76

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
11/04/2024, 11:50

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General

Target

2024-04-11_f925daea037b364b83eda4c2cc3e9804_cryptolocker.exe
Size

44KB
MD5

f925daea037b364b83eda4c2cc3e9804
SHA1

5f184862405cdd2cdf5df542c7437e7626d3b5e6
SHA256

da0a56c9848040b0845b537e168650b32bb0049cf3de890d1d17b30d6e5eeb76
SHA512

8c3e9b17c22a6dfc6c9cdeed47d291441ff7ada9e745588d41a115c0d0eda53c19d83b0e47af3dc5da656627a0e42e64c1b5541bc793e9e005187de732c21b44
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDDw3sCu5b+syQNO:bgGYcA/53GADw8Cl/3

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002332f-12.dat	CryptoLocker_rule2

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-1-5-21-1904519900-954640453-4250331663-1000\Control Panel\International\Geo\Nation	2024-04-11_f925daea037b364b83eda4c2cc3e9804_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4552	hasfj.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 220 wrote to memory of 4552	220	2024-04-11_f925daea037b364b83eda4c2cc3e9804_cryptolocker.exe	92
PID 220 wrote to memory of 4552	220	2024-04-11_f925daea037b364b83eda4c2cc3e9804_cryptolocker.exe	92
PID 220 wrote to memory of 4552	220	2024-04-11_f925daea037b364b83eda4c2cc3e9804_cryptolocker.exe	92

C:\Users\Admin\AppData\Local\Temp\2024-04-11_f925daea037b364b83eda4c2cc3e9804_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-11_f925daea037b364b83eda4c2cc3e9804_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:220
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4552

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=4092 --field-trial-handle=3136,i,3192284747741020952,1225278682167953346,262144 --variations-seed-version /prefetch:8
1⤵
PID:3084

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\hasfj.exe

Filesize
44KB

MD5
353581972591e25f3b0d59d79cb65571

SHA1
8262988239fbb4f49251411f112fca1c2e28cc68

SHA256
2fde491f2e2178628b07ec04b59999033f10438e1bd482093c09d03d7cbdf32b

SHA512
8ac6fa7992e13f6042a557456d6eb4d38bba0af5bded5140ff3aa5e981d9b6c0b03123593dc960a34e1902d0ee7b8ae7f207eab573779ac23f2c3ce08edbcdc7

Download Submit
memory/220-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/220-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/220-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4552-17-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

Filesize
24KB

Download
memory/4552-19-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download