e80344beba874e8dc2838736dfe8fd79d5c6224370bd27dc3dd0c25e9ef5c441

Analysis

max time kernel
11s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
08/06/2024, 15:01

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General

Target

2024-06-08_4495179658a8624f73155e4704505c4e_cryptolocker.exe
Size

45KB
MD5

4495179658a8624f73155e4704505c4e
SHA1

0bcd11bb48146db9ade2a550aeabba4a786f55b4
SHA256

e80344beba874e8dc2838736dfe8fd79d5c6224370bd27dc3dd0c25e9ef5c441
SHA512

098768c9bfcc6dd18ce8299d8c0822a99f0d89214c97514b88da1088338c27e5370bb90dba351d5c08577099e41f80fad87308263331dc604932ad225734b558
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6/aMDY:6j+1NMOtEvwDpjrRrk

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/1800-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000b000000023214-13.dat	CryptoLocker_rule2
behavioral2/memory/1800-25-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4288-48-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral2/memory/1800-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x000b000000023214-13.dat	CryptoLocker_set1
behavioral2/memory/1800-25-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/4288-48-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral2/memory/1800-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x000b000000023214-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/1800-25-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4288-48-0x0000000000500000-0x000000000050F000-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	2024-06-08_4495179658a8624f73155e4704505c4e_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4288	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 1800 wrote to memory of 4288	1800	2024-06-08_4495179658a8624f73155e4704505c4e_cryptolocker.exe	90
PID 1800 wrote to memory of 4288	1800	2024-06-08_4495179658a8624f73155e4704505c4e_cryptolocker.exe	90
PID 1800 wrote to memory of 4288	1800	2024-06-08_4495179658a8624f73155e4704505c4e_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-06-08_4495179658a8624f73155e4704505c4e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-08_4495179658a8624f73155e4704505c4e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1800
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4288

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=1928,i,13242902252791919845,10377620236057253993,262144 --variations-seed-version /prefetch:8
1⤵
PID:4596

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
45KB

MD5
de87a525512866b740fb55bdf03599fb

SHA1
bde397d50c82861b3e4a853dd257dfc25d24c9c1

SHA256
32e4200f76757e1c803698b63480836091c864c80af3fc505b002b0e576b1348

SHA512
64a203025244d4ef45c7780ef193839baeb9580cce54713f02b6578dcc7c498d42f512a08d3e0dc6f86160e7ac8bf8fdbdeaaf820084ec72f7f0da23ea44c6f3

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

Filesize
315B

MD5
a34ac19f4afae63adc5d2f7bc970c07f

SHA1
a82190fc530c265aa40a045c21770d967f4767b8

SHA256
d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

SHA512
42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

Download Submit
memory/1800-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1800-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/1800-2-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/1800-3-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/1800-25-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4288-18-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/4288-24-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/4288-48-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download