63b98721e65b768178756863e254fb07030f2532952c5a1641f399a4e73c8cc8

Analysis

max time kernel
127s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
05-04-2024 12:41

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General

Target

2024-04-05_dd9ddcda3edd80c5edfc98a8affa7bf3_cryptolocker.exe
Size

38KB
MD5

dd9ddcda3edd80c5edfc98a8affa7bf3
SHA1

8d35271cf3026f9580da251f975d77d8a84ce831
SHA256

63b98721e65b768178756863e254fb07030f2532952c5a1641f399a4e73c8cc8
SHA512

9521d225ff9c67949fb8c58761492e43d7e5557da70a5910a8289f33649d969e4920146c370cb6e4e651464e04cb1f0e2dd46eb8685ac34ce12b789fedb8630d
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen7JEgx3v:bxNrC7kYo1Fxf3s06g5

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023331-12.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	2024-04-05_dd9ddcda3edd80c5edfc98a8affa7bf3_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\Control Panel\International\Geo\Nation	pissa.exe

Executes dropped EXE 1 IoCs

pid	Process
2672	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 3980 wrote to memory of 2672	3980	2024-04-05_dd9ddcda3edd80c5edfc98a8affa7bf3_cryptolocker.exe	95
PID 3980 wrote to memory of 2672	3980	2024-04-05_dd9ddcda3edd80c5edfc98a8affa7bf3_cryptolocker.exe	95
PID 3980 wrote to memory of 2672	3980	2024-04-05_dd9ddcda3edd80c5edfc98a8affa7bf3_cryptolocker.exe	95

C:\Users\Admin\AppData\Local\Temp\2024-04-05_dd9ddcda3edd80c5edfc98a8affa7bf3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-05_dd9ddcda3edd80c5edfc98a8affa7bf3_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3980
- 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:2672

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=4148 --field-trial-handle=3016,i,1323102786462900035,7687994236215859601,262144 --variations-seed-version /prefetch:8
1⤵
PID:2220

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
38KB

MD5
3010f21f09e8c1030c2db6e6481059dd

SHA1
61861ef6ec38e1333c4c3c15e0b504988f224bb9

SHA256
38d22d1a53190aaa400f561da737c5c8bb5f24bfb1c46cf4a38711c76a344213

SHA512
103a3c96d81b00584f89d06f76c322abf06b5cf8e4f873126c1e515427696e91461893abea3dcbb8e9db26c6220b5e1b3fd453e487e097f20c38a19059a62aa1

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

Filesize
261B

MD5
11bed1c06d8f4680de5154405be20365

SHA1
9c3095f1aa0b02924c23592d1e86673bb0081ca1

SHA256
bcc0582f122db6e61d2aa06628275f5b882c01ca037699427d0f68e48d744666

SHA512
050bb38ff33ab7e8e8aa647cffb26d2b0a54074340e79f0acf0db8f076c421505f1e4c1ce169d55aeacd4085ce258a78d24327c9393650642963beb130517da8

Download Submit
memory/2672-19-0x0000000002020000-0x0000000002026000-memory.dmp

Filesize
24KB

Download
memory/2672-17-0x0000000002290000-0x0000000002296000-memory.dmp

Filesize
24KB

Download
memory/3980-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3980-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3980-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download