8344de4e5aa55c994cb37ea866e968ea0427dc2f3ed10e5d27f76afa5fc839da

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240319-en
resource tags

arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system
submitted
25/03/2024, 22:55

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General

Target

2024-03-25_ecd64855fccd5dfc101e55d1c3696606_cryptolocker.exe
Size

48KB
MD5

ecd64855fccd5dfc101e55d1c3696606
SHA1

fa47ae041acd57a9f1870ea8cb9657f95296abab
SHA256

8344de4e5aa55c994cb37ea866e968ea0427dc2f3ed10e5d27f76afa5fc839da
SHA512

ac7d06e829e15d7e95be6b668fbf447f8071db5b46b6a594ff4e19b04bf09b5b301fdb8f78264e15a82d2e6715fc25c2134ae9faac38d06fa2a76c65687b853a
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YbDu5z/hvvkD9x:bgGYcA/53GAA6y37nbyx

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001db72-12.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-1-5-21-817259280-2658881748-983986378-1000\Control Panel\International\Geo\Nation	2024-03-25_ecd64855fccd5dfc101e55d1c3696606_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
452	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 4356 wrote to memory of 452	4356	2024-03-25_ecd64855fccd5dfc101e55d1c3696606_cryptolocker.exe	95
PID 4356 wrote to memory of 452	4356	2024-03-25_ecd64855fccd5dfc101e55d1c3696606_cryptolocker.exe	95
PID 4356 wrote to memory of 452	4356	2024-03-25_ecd64855fccd5dfc101e55d1c3696606_cryptolocker.exe	95

C:\Users\Admin\AppData\Local\Temp\2024-03-25_ecd64855fccd5dfc101e55d1c3696606_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-25_ecd64855fccd5dfc101e55d1c3696606_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4356
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:452

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=4384 --field-trial-handle=2232,i,3915538061666887171,15629965885515244134,262144 --variations-seed-version /prefetch:8
1⤵
PID:1560

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
48KB

MD5
ee389f71d549a97e0c5549b235160042

SHA1
ff11827cd7ba6682ce1188a982e92ef85b343db9

SHA256
5c6086585c5852ed633f6671881c06ae3502ceb5df617b637883f191de5b798d

SHA512
70571ac73e4e4f03c3d91fb0d435fb922e36ea98cbdb71573d114969874f8f720aad31c669c2c753cc9be2c1d161985b4be5e2d58b2a74efef52aa45ef91bccd

Download Submit
memory/452-18-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/452-17-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download
memory/4356-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4356-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4356-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download