93d37334135ea55c398b895731ae0f743ec5515c3fab59cffc76d98b73de5f94

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23/04/2024, 20:57

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General

Target

2024-04-23_c29a7912dd5b408fc36e9465ca052507_cryptolocker.exe
Size

65KB
MD5

c29a7912dd5b408fc36e9465ca052507
SHA1

d35ccf2985408ca7e3e8b469ea9ad166d36c7b94
SHA256

93d37334135ea55c398b895731ae0f743ec5515c3fab59cffc76d98b73de5f94
SHA512

30e2f6d9e0fd87fd403c9f1d0e5242c4c473495cd940648c214298fdd8ccace023a1111c34003f4b8dae85ecfb9a7f650fa6bbb85779c9b07b5bb3ecb1ae2a25
SSDEEP

768:zQz7yVEhs9+syJP6ntOOtEvwDpjFelaB7yBEY9Su8F5mLZ5k5Bj:zj+soPSMOtEvwDpj4kpmeLmQ/j

Score

9^/10

upx

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2812-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a000000014a94-11.dat	CryptoLocker_rule2
behavioral1/memory/2812-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2684-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2684-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2812-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a000000014a94-11.dat	CryptoLocker_set1
behavioral1/memory/2812-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2684-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2684-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 5 IoCs

resource	yara_rule
behavioral1/memory/2812-0-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/files/0x000a000000014a94-11.dat	UPX
behavioral1/memory/2812-15-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2684-17-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2684-26-0x0000000000500000-0x0000000000510000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
2684	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2812	2024-04-23_c29a7912dd5b408fc36e9465ca052507_cryptolocker.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2812-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000a000000014a94-11.dat	upx
behavioral1/memory/2812-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2684-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2684-26-0x0000000000500000-0x0000000000510000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2812 wrote to memory of 2684	2812	2024-04-23_c29a7912dd5b408fc36e9465ca052507_cryptolocker.exe	28
PID 2812 wrote to memory of 2684	2812	2024-04-23_c29a7912dd5b408fc36e9465ca052507_cryptolocker.exe	28
PID 2812 wrote to memory of 2684	2812	2024-04-23_c29a7912dd5b408fc36e9465ca052507_cryptolocker.exe	28
PID 2812 wrote to memory of 2684	2812	2024-04-23_c29a7912dd5b408fc36e9465ca052507_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-23_c29a7912dd5b408fc36e9465ca052507_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-23_c29a7912dd5b408fc36e9465ca052507_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2812
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2684

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
65KB

MD5
1ccdc14b7f6a7f6c709626c867640e46

SHA1
635e05609139ad3d10bb9c2927bc92aec2d51fd1

SHA256
ed60dd59f084c88941c2909309b35e728c2986feafc11f5cb15fbca645726753

SHA512
f06198e6f79a661b2e43342a3a246c60000e8ffa6005898249c11e24e70a495433ea84654075ff3fb35a4bd569beb80045de6a230060ee75b865586980db4fd6

Download Submit
memory/2684-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2684-19-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2684-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2812-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2812-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2812-2-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2812-3-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2812-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2812-13-0x0000000000910000-0x0000000000920000-memory.dmp

Filesize
64KB

Download