7e3c7606a26072687a50b7d80a1539ed0414c083a9fdb116f70f81c8bbe8761b

Analysis

max time kernel
142s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
06/03/2024, 18:00

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General

Target

2024-03-06_cec8c3c19bb75c6e6d024be654cb9fb0_cryptolocker.exe
Size

44KB
MD5

cec8c3c19bb75c6e6d024be654cb9fb0
SHA1

ccc54fa84996947bae1e90b13919f1683324c1e9
SHA256

7e3c7606a26072687a50b7d80a1539ed0414c083a9fdb116f70f81c8bbe8761b
SHA512

735750b68a77376fd4e185f701cb31eabe08fc9032576652ee34a29c45a6d3080e7546583749f13edd02cd812bac12fe0a261bc3124ef8511bb40772e973927b
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4REL+cc66nkp3:vj+jsMQMOtEvwDpj5HW5Ii3

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023256-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023256-12.dat	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	2024-03-06_cec8c3c19bb75c6e6d024be654cb9fb0_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3652	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 4980 wrote to memory of 3652	4980	2024-03-06_cec8c3c19bb75c6e6d024be654cb9fb0_cryptolocker.exe	102
PID 4980 wrote to memory of 3652	4980	2024-03-06_cec8c3c19bb75c6e6d024be654cb9fb0_cryptolocker.exe	102
PID 4980 wrote to memory of 3652	4980	2024-03-06_cec8c3c19bb75c6e6d024be654cb9fb0_cryptolocker.exe	102

C:\Users\Admin\AppData\Local\Temp\2024-03-06_cec8c3c19bb75c6e6d024be654cb9fb0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_cec8c3c19bb75c6e6d024be654cb9fb0_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4980
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3652

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=4072 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:8
1⤵
PID:3776

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
44KB

MD5
4982493102522c3af649e6f3f57ce98d

SHA1
3476268890e5d38646532fe115dacf73db866bd1

SHA256
50d703cd575522db981e8635a59b8b4832c1416385e8c421f1826d79c326b897

SHA512
40a7e71e40de184a6a7c3fdf2d6747d9385c091868d3d1b52ba08651eb32db649272f71352f120fa0ca1417db9aa3fe0b39422f63397068613aba70d4a328ce7

Download Submit
memory/3652-18-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/3652-17-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4980-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4980-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4980-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download