9b61561bc5061b51089f6a56d805aff939c2cc014b4efbc20acb98ebce66a2f2

Analysis

max time kernel
153s
max time network
162s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
08/03/2024, 06:17

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General

Target

2024-03-08_c28d68e8f7ce595201aa87e10f781060_cryptolocker.exe
Size

58KB
MD5

c28d68e8f7ce595201aa87e10f781060
SHA1

560e89e99c13127aee9b3360de683b47852806b9
SHA256

9b61561bc5061b51089f6a56d805aff939c2cc014b4efbc20acb98ebce66a2f2
SHA512

9e21793b452ce3b4893e71623c9546ddf490779c91d70d9a05f3d8b7d88bde1261509dd7577e1018a87cdadd67d3ec4a2f15da8a301210ad80d2b543fcf569c7
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMV:TCjsIOtEvwDpj5HE/OUHnSMm

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/4076-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000800000002326d-13.dat	CryptoLocker_rule2
behavioral2/memory/4076-19-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4664-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral2/memory/4076-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x000800000002326d-13.dat	CryptoLocker_set1
behavioral2/memory/4076-19-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral2/memory/4664-26-0x0000000000500000-0x000000000050E000-memory.dmp	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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-03-08_c28d68e8f7ce595201aa87e10f781060_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4664	misid.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 4076 wrote to memory of 4664	4076	2024-03-08_c28d68e8f7ce595201aa87e10f781060_cryptolocker.exe	98
PID 4076 wrote to memory of 4664	4076	2024-03-08_c28d68e8f7ce595201aa87e10f781060_cryptolocker.exe	98
PID 4076 wrote to memory of 4664	4076	2024-03-08_c28d68e8f7ce595201aa87e10f781060_cryptolocker.exe	98

C:\Users\Admin\AppData\Local\Temp\2024-03-08_c28d68e8f7ce595201aa87e10f781060_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_c28d68e8f7ce595201aa87e10f781060_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4076
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4664

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=3488 --field-trial-handle=3088,i,14310325015283915034,7660943942870463106,262144 --variations-seed-version /prefetch:8
1⤵
PID:3116

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\misid.exe

Filesize
58KB

MD5
e5698a3015dcd109fd1e04a64c1e9812

SHA1
e847f7bad31b8e266b2a44c945ca2b3446e084a9

SHA256
9c6fba5d16e44ad19d18b9931689e70b312f6c57fa6e5f09f6a5c02bc01f68ab

SHA512
6bb009ba2334c777963566244964f8a51630f58a1e5dd44e1eb3da84f583bb6f482838da6681159887d4a1b18fdd9592af9b4fe59001e12c8e6ff5e43e92ca3b

Download Submit
memory/4076-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/4076-1-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/4076-2-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/4076-3-0x0000000000790000-0x0000000000796000-memory.dmp

Filesize
24KB

Download
memory/4076-19-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/4664-18-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/4664-20-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download
memory/4664-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download