7e9d13ea37f07ba584f9be861c6c648975e7c55746e1116a13156e59a1a88a0a

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
23/02/2024, 02:39

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General

Target

2024-02-23_8ce1c6f948fedb786b3dc22623f01b29_cryptolocker.exe
Size

124KB
MD5

8ce1c6f948fedb786b3dc22623f01b29
SHA1

e9fa151ca2be5d2478543013022224b7c9d7bfd0
SHA256

7e9d13ea37f07ba584f9be861c6c648975e7c55746e1116a13156e59a1a88a0a
SHA512

3c4bc92de72d88e9b839dd2deab6bb66287ff8cb1db93da0663311c9902c48be35b93ea1e75b5030b3379a3a15729d7ce4b7f2bf53de588855575a67d3bba492
SSDEEP

1536:gUj+AIMOtEvwDpjNbwQEIPlemUhYwkkxE4B:vCA9OtEvwDpj0

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023201-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023201-12.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-1-5-21-3054445511-921769590-4013668107-1000\Control Panel\International\Geo\Nation	2024-02-23_8ce1c6f948fedb786b3dc22623f01b29_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1848	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 4112 wrote to memory of 1848	4112	2024-02-23_8ce1c6f948fedb786b3dc22623f01b29_cryptolocker.exe	90
PID 4112 wrote to memory of 1848	4112	2024-02-23_8ce1c6f948fedb786b3dc22623f01b29_cryptolocker.exe	90
PID 4112 wrote to memory of 1848	4112	2024-02-23_8ce1c6f948fedb786b3dc22623f01b29_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-02-23_8ce1c6f948fedb786b3dc22623f01b29_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_8ce1c6f948fedb786b3dc22623f01b29_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4112
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1848

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
124KB

MD5
ef87aa99f14a2e0f43ba36612f42d1fc

SHA1
913396a08baa858da73a17b5fd77d19ea65c5c02

SHA256
c1df6fd13d19cd5d69f22924c3294b8da78cf5e54388160492c98d11ff744f47

SHA512
a0556fa903e7a9b2231b987d58585a4029a499f4bc133792d1057fb99cf7aa0cd6d3c9d426e5db511177ad5e58f6f19c6bcaf6ec1d0934716956147a163e2499

Download Submit
memory/1848-17-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download
memory/1848-20-0x0000000001F60000-0x0000000001F66000-memory.dmp

Filesize
24KB

Download
memory/4112-0-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/4112-1-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/4112-2-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download