37af91aa083622cb7b7d29bb70c2c6c72e87fd8f9cdb08fe45c0b5772f5a6cfe

Analysis

max time kernel
133s
max time network
145s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
26-08-2023 19:50

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General

Target

a5afa18db34939928bcf2b4cbc84db64_cryptolocker_JC.exe
Size

52KB
MD5

a5afa18db34939928bcf2b4cbc84db64
SHA1

c2e3a5d05f4cd083393708d082d403577523fba5
SHA256

37af91aa083622cb7b7d29bb70c2c6c72e87fd8f9cdb08fe45c0b5772f5a6cfe
SHA512

efd08345e5e22121a96e3bd60b9b3bb5d2deceadcbe10e89b5183935136698d036a0681536d872af7852a5532bd02d907c9166c1fe121a3acb895365f2824621
SSDEEP

768:79inqyNR/QtOOtEvwDpjBK/iVTab3GRuv3VylsPF:79mqyNhQMOtEvwDpjBPY7xv3gyt

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2216	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2092	a5afa18db34939928bcf2b4cbc84db64_cryptolocker_JC.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 2092 wrote to memory of 2216	2092	a5afa18db34939928bcf2b4cbc84db64_cryptolocker_JC.exe	28
PID 2092 wrote to memory of 2216	2092	a5afa18db34939928bcf2b4cbc84db64_cryptolocker_JC.exe	28
PID 2092 wrote to memory of 2216	2092	a5afa18db34939928bcf2b4cbc84db64_cryptolocker_JC.exe	28
PID 2092 wrote to memory of 2216	2092	a5afa18db34939928bcf2b4cbc84db64_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\a5afa18db34939928bcf2b4cbc84db64_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\a5afa18db34939928bcf2b4cbc84db64_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2092
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2216

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\asih.exe

Filesize
53KB

MD5
8186e8d38e37f4fee9057a7121c7ce37

SHA1
bb706b2a87b3fdec6f7ef3806016a17d5bf30046

SHA256
3c47ef2be8130183f1fe4979e546dce3bf432659e8296f64f111d6ccee876ddf

SHA512
8390633d34809fb1cc329d74485ff98bdc209e43c433eeb19769eb79375bfd2b83a1e3b970380445092bde53e9a849841cef22646d1e8357dd9f7a73009371ae

Download Submit
C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
53KB

MD5
8186e8d38e37f4fee9057a7121c7ce37

SHA1
bb706b2a87b3fdec6f7ef3806016a17d5bf30046

SHA256
3c47ef2be8130183f1fe4979e546dce3bf432659e8296f64f111d6ccee876ddf

SHA512
8390633d34809fb1cc329d74485ff98bdc209e43c433eeb19769eb79375bfd2b83a1e3b970380445092bde53e9a849841cef22646d1e8357dd9f7a73009371ae

Download Submit
\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
53KB

MD5
8186e8d38e37f4fee9057a7121c7ce37

SHA1
bb706b2a87b3fdec6f7ef3806016a17d5bf30046

SHA256
3c47ef2be8130183f1fe4979e546dce3bf432659e8296f64f111d6ccee876ddf

SHA512
8390633d34809fb1cc329d74485ff98bdc209e43c433eeb19769eb79375bfd2b83a1e3b970380445092bde53e9a849841cef22646d1e8357dd9f7a73009371ae

Download Submit
memory/2092-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2092-3-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2092-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2092-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2092-13-0x00000000006F0000-0x00000000006FF000-memory.dmp

Filesize
60KB

Download
memory/2092-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2092-26-0x00000000006F0000-0x00000000006FF000-memory.dmp

Filesize
60KB

Download
memory/2216-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2216-19-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2216-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download