34984577da5c4e7e33761f1d93c4a8cd709d8156b0caaf27c1c60e6d6ca7f9f7

Analysis

max time kernel
150s
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
24-04-2024 17:53

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General

Target

2024-04-24_ae84c8495c08e1d89368feeca46fc84d_cryptolocker.exe
Size

88KB
MD5

ae84c8495c08e1d89368feeca46fc84d
SHA1

e197f185d05ee3e4b89ef498916cb37c7ec2af18
SHA256

34984577da5c4e7e33761f1d93c4a8cd709d8156b0caaf27c1c60e6d6ca7f9f7
SHA512

20cab721c7bd9b424f30482b05e9aa6eecb3f3d0d0ddd04ad0bd5be0cb59198a67489609ddf6a9c3785cc4db0f438d1f5d182649eb26cab4304b8aab60507978
SSDEEP

1536:i5nkFGMOtEvwDpjNbwQEI8UtzNcO8Acnl:okFDOtEvwDpjPu

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/3604-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/3604-10-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x0008000000023247-14.dat	CryptoLocker_rule2
behavioral2/memory/3428-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 2 IoCs

resource	yara_rule
behavioral2/memory/3604-10-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/3428-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral2/memory/3604-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/3604-10-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x0008000000023247-14.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/3428-27-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

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	2024-04-24_ae84c8495c08e1d89368feeca46fc84d_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3428	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 3604 wrote to memory of 3428	3604	2024-04-24_ae84c8495c08e1d89368feeca46fc84d_cryptolocker.exe	90
PID 3604 wrote to memory of 3428	3604	2024-04-24_ae84c8495c08e1d89368feeca46fc84d_cryptolocker.exe	90
PID 3604 wrote to memory of 3428	3604	2024-04-24_ae84c8495c08e1d89368feeca46fc84d_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-04-24_ae84c8495c08e1d89368feeca46fc84d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-24_ae84c8495c08e1d89368feeca46fc84d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3604
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3428

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=1412 --field-trial-handle=2304,i,6987730730348465820,3913273227385401271,262144 --variations-seed-version /prefetch:8
1⤵
PID:1092

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
88KB

MD5
56957ea3a41d45fee655cfb0932a9919

SHA1
64847510ab44a41c51823cb8cfbfa1d5f4242d97

SHA256
7697e09c4106b0eb3ca2312ca30e6a834c2b258d6cb9cde0c6779cba23611b86

SHA512
2f4503837e3412979c8de2155e327dd3c2376e5fe726a27d68b778bda874030dd1c421ea9f4150c6c95724ad0d6e3d039a3851fde671a9d7146c1588fd7c6aa9

Download Submit
memory/3428-20-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/3428-19-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/3428-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3604-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3604-1-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/3604-2-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/3604-3-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/3604-10-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download