bda6fbe3acdbc084a55f8dc2055ab44c0355c5e9fbec760ec526f10137a605ff

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
26/01/2024, 23:24

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General

Target

2024-01-26_a3bc3ee592c417d1682798eef73bdf7f_cryptolocker.exe
Size

60KB
MD5

a3bc3ee592c417d1682798eef73bdf7f
SHA1

3e9abd20e3601d07c11498ceb09e69366a290a16
SHA256

bda6fbe3acdbc084a55f8dc2055ab44c0355c5e9fbec760ec526f10137a605ff
SHA512

a5b09b2ba15180f6571f063be130d89791f0e5924fcafa6fd04beeea46fa6b982adbe6cdf688a431c38f1ecc11db788345f1d922ba937e9fb570a0f58c808b64
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMw:TCjsIOtEvwDpj5HE/OUHnSMP

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/3024-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a00000001224c-11.dat	CryptoLocker_rule2
behavioral1/memory/3024-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2116-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2116-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/3024-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a00000001224c-11.dat	CryptoLocker_set1
behavioral1/memory/3024-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2116-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2116-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2116	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
3024	2024-01-26_a3bc3ee592c417d1682798eef73bdf7f_cryptolocker.exe

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 3024 wrote to memory of 2116	3024	2024-01-26_a3bc3ee592c417d1682798eef73bdf7f_cryptolocker.exe	28
PID 3024 wrote to memory of 2116	3024	2024-01-26_a3bc3ee592c417d1682798eef73bdf7f_cryptolocker.exe	28
PID 3024 wrote to memory of 2116	3024	2024-01-26_a3bc3ee592c417d1682798eef73bdf7f_cryptolocker.exe	28
PID 3024 wrote to memory of 2116	3024	2024-01-26_a3bc3ee592c417d1682798eef73bdf7f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-26_a3bc3ee592c417d1682798eef73bdf7f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-26_a3bc3ee592c417d1682798eef73bdf7f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3024
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2116

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

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Downloads

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

Filesize
61KB

MD5
d7f9ed9c557ad888a29d1e91b7d9fb10

SHA1
762b432108db556ee503e36c97478fe786d97d4e

SHA256
d5279dba53537a5983b0a1ded0eacb22e961ab998ab6c37fa27e06ab2af5abbc

SHA512
f384d192ad45af7597ea9438a83e6f204a5220afa43baf33dc153adf08ed97f5e33539ac4566ed72a9ecc2f8eea35268246a037b004a73b205ee015c1a7f5bbd

Download Submit
memory/2116-18-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2116-20-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2116-17-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2116-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/3024-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/3024-1-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/3024-2-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/3024-9-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/3024-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download