b5cef22f692aeddc0a6113dba513d0c54b4abbe21927c81a76ad66faa758e2fe

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
19/04/2024, 02:02

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General

Target

b5cef22f692aeddc0a6113dba513d0c54b4abbe21927c81a76ad66faa758e2fe.exe
Size

39KB
MD5

6eb292a566dbb3f17f8afe31aa2eb748
SHA1

2551636f4eeac900f2e66eb31e5e7f8fffda94bf
SHA256

b5cef22f692aeddc0a6113dba513d0c54b4abbe21927c81a76ad66faa758e2fe
SHA512

ec3dfb5647bdf837a7208f27808bf39469383e1ad4b64e19679b53ac717e814780f84c9df412fad17b0b01ccc9db49fc4a33b71215caa64d4c77c02d1e799dae
SSDEEP

768:bA74zYcgT/Ekd0ryfjPIunqpeNswmT3Hw2Ag:bA6YcA/X6G0W143Qlg

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001332e-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3016	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2184	b5cef22f692aeddc0a6113dba513d0c54b4abbe21927c81a76ad66faa758e2fe.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 2184 wrote to memory of 3016	2184	b5cef22f692aeddc0a6113dba513d0c54b4abbe21927c81a76ad66faa758e2fe.exe	28
PID 2184 wrote to memory of 3016	2184	b5cef22f692aeddc0a6113dba513d0c54b4abbe21927c81a76ad66faa758e2fe.exe	28
PID 2184 wrote to memory of 3016	2184	b5cef22f692aeddc0a6113dba513d0c54b4abbe21927c81a76ad66faa758e2fe.exe	28
PID 2184 wrote to memory of 3016	2184	b5cef22f692aeddc0a6113dba513d0c54b4abbe21927c81a76ad66faa758e2fe.exe	28

C:\Users\Admin\AppData\Local\Temp\b5cef22f692aeddc0a6113dba513d0c54b4abbe21927c81a76ad66faa758e2fe.exe
"C:\Users\Admin\AppData\Local\Temp\b5cef22f692aeddc0a6113dba513d0c54b4abbe21927c81a76ad66faa758e2fe.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2184
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3016

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\hasfj.exe

Filesize
39KB

MD5
c0020901949696b7799e4c020e0bb254

SHA1
284d8d1ee8c509495d3dfba70c7e48f33a48dc12

SHA256
0f7b64723d2add7263dfe546da975886ad9895dd56452061f3540d8cf0f346da

SHA512
e8fe31d996f7c834c8b6c46a388409dfd959cdb13c0ac16453b068194fed8f479f3a2bcce98c24628cd27c3cee555f4d8355a7a880ed558ef925565de5c212aa

Download Submit
memory/2184-0-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/2184-1-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/2184-8-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/3016-15-0x0000000000580000-0x0000000000586000-memory.dmp

Filesize
24KB

Download
memory/3016-18-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download