1e7bbb1a9a288393317b1f1894eda93e83b76e7bc1c4dc78eea51e0de987395b

Analysis

max time kernel
135s
max time network
148s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
16-04-2024 14:54

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General

Target

2024-04-16_bcadf2beab7e51fa5e72257f95e63b61_cryptolocker.exe
Size

82KB
MD5

bcadf2beab7e51fa5e72257f95e63b61
SHA1

727dfb8821d1a8957b004443516befde89edf5d4
SHA256

1e7bbb1a9a288393317b1f1894eda93e83b76e7bc1c4dc78eea51e0de987395b
SHA512

d2829d9f87e9791e92496d936291c1fdb5fa49fd1eee25911a81b25210b9c80b1f8f26b173b08239cffe58328c924478bb926207bc09519c08a01c40823f2d10
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMrMH:TCjsIOtEvwDpj5HE/OUHnSMS

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1168-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1168-14-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2688-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a00000001223f-15.dat	CryptoLocker_rule2
behavioral1/memory/2688-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1168-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1168-14-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2688-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a00000001223f-15.dat	CryptoLocker_set1
behavioral1/memory/2688-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2688	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1168	2024-04-16_bcadf2beab7e51fa5e72257f95e63b61_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 1168 wrote to memory of 2688	1168	2024-04-16_bcadf2beab7e51fa5e72257f95e63b61_cryptolocker.exe	28
PID 1168 wrote to memory of 2688	1168	2024-04-16_bcadf2beab7e51fa5e72257f95e63b61_cryptolocker.exe	28
PID 1168 wrote to memory of 2688	1168	2024-04-16_bcadf2beab7e51fa5e72257f95e63b61_cryptolocker.exe	28
PID 1168 wrote to memory of 2688	1168	2024-04-16_bcadf2beab7e51fa5e72257f95e63b61_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-16_bcadf2beab7e51fa5e72257f95e63b61_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-16_bcadf2beab7e51fa5e72257f95e63b61_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1168
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2688

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

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

Filesize
82KB

MD5
9f939b1ca2f4e81a30291ae6ed9a9f2b

SHA1
ce7a7a9444ddadb7ca9acced41f65ee376357183

SHA256
a078d2047e3efba690896fb6937a71bff7b502b02059e3ebb2be396a8f059161

SHA512
cf261cf5b5e30bebf999cbfe195e755b52a12964211d63cfac768100ce8552028d7db2c4e49ef51d92d6a09073d13b09eafd018a0c09c7fa8210c5b2327fa977

Download Submit
memory/1168-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1168-1-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/1168-2-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1168-8-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/1168-14-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2688-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2688-18-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2688-19-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2688-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download