15fe618d8e827be3368fde96b031e617f1b5d0a491e7f301197039274c27938e

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240319-en
resource tags

arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
submitted
27/03/2024, 17:49

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General

Target

15fe618d8e827be3368fde96b031e617f1b5d0a491e7f301197039274c27938e.exe
Size

35KB
MD5

ef6aff1c3857293362924a4a7ffeb8ac
SHA1

5bcd17af196edfbee1a1ae8ded04807000dd5a3c
SHA256

15fe618d8e827be3368fde96b031e617f1b5d0a491e7f301197039274c27938e
SHA512

681d31bb1dd967cac47ec2d8ac240627d1242e87bc6d61588c214c39d30c3c9ef6bacf3235098db9491d58811cea725c02dc2e61459c66202ef39c460b76b8b6
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6WaJIOc+UPPb6b:YGzl5wjRQBBOsP1QMOtEvwDpjgarJb

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/1720-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b0000000121c5-11.dat	CryptoLocker_rule2
behavioral1/memory/2988-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1720-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/1720-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b0000000121c5-11.dat	CryptoLocker_set1
behavioral1/memory/2988-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1720-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2988	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1720	15fe618d8e827be3368fde96b031e617f1b5d0a491e7f301197039274c27938e.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 1720 wrote to memory of 2988	1720	15fe618d8e827be3368fde96b031e617f1b5d0a491e7f301197039274c27938e.exe	28
PID 1720 wrote to memory of 2988	1720	15fe618d8e827be3368fde96b031e617f1b5d0a491e7f301197039274c27938e.exe	28
PID 1720 wrote to memory of 2988	1720	15fe618d8e827be3368fde96b031e617f1b5d0a491e7f301197039274c27938e.exe	28
PID 1720 wrote to memory of 2988	1720	15fe618d8e827be3368fde96b031e617f1b5d0a491e7f301197039274c27938e.exe	28

C:\Users\Admin\AppData\Local\Temp\15fe618d8e827be3368fde96b031e617f1b5d0a491e7f301197039274c27938e.exe
"C:\Users\Admin\AppData\Local\Temp\15fe618d8e827be3368fde96b031e617f1b5d0a491e7f301197039274c27938e.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2988

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\asih.exe

Filesize
35KB

MD5
936d0589287f5718bbab3e40c38278bb

SHA1
affc83e5301e34f30eaddbe04230cc98a0b593aa

SHA256
f3eb17514730195a49e00d35ebaecb9dee20aebdc72c782e4551c1218f0b157a

SHA512
cf57243b9380852935c96d5106875152ef65c1515a419d33522f37599ec803ade934c220ed37a43b21170669d29be7e81e5e2b22263c75f758907a9a459ff93d

Download Submit
memory/1720-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1720-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1720-2-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/1720-4-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1720-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2988-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2988-18-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/2988-22-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download