b2b3cfecd0350ca1a54b570649eb53c8e08515154ff5b6ab5f28d1371565ef7c

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26/03/2024, 19:46

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General

Target

2024-03-26_2ff03f9931c6a92b7a678b0491815efb_cryptolocker.exe
Size

386KB
MD5

2ff03f9931c6a92b7a678b0491815efb
SHA1

3824da0c16f68b2e5e0879b4defb7788b412386c
SHA256

b2b3cfecd0350ca1a54b570649eb53c8e08515154ff5b6ab5f28d1371565ef7c
SHA512

32429a196259cbca944f7fea006d10caabacf39a16c12e75df06b73eae72f1eb4559811b2352e1a5fe84edae34482c98b17263f2b13e3bcf29debf7ebe60e7ae
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXG:nnOflT/ZFIjBz3xjTxynGUOUhXG

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224f-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2308	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2212	2024-03-26_2ff03f9931c6a92b7a678b0491815efb_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 2212 wrote to memory of 2308	2212	2024-03-26_2ff03f9931c6a92b7a678b0491815efb_cryptolocker.exe	28
PID 2212 wrote to memory of 2308	2212	2024-03-26_2ff03f9931c6a92b7a678b0491815efb_cryptolocker.exe	28
PID 2212 wrote to memory of 2308	2212	2024-03-26_2ff03f9931c6a92b7a678b0491815efb_cryptolocker.exe	28
PID 2212 wrote to memory of 2308	2212	2024-03-26_2ff03f9931c6a92b7a678b0491815efb_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-26_2ff03f9931c6a92b7a678b0491815efb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-26_2ff03f9931c6a92b7a678b0491815efb_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2212
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2308

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
387KB

MD5
c33a5a390da1825c4487746091196f9c

SHA1
504beb90d9dd3c0e561ba2221d29702dbba27bdf

SHA256
449b21c3cf2e2f71a8067544f8ca991233d36c3c6c3ae9b08df656d80270a8b8

SHA512
7916a3a56851636d46877e7e839f4db843784001e7c6c2b7b1976afc031015431ae5a459f865ffd31fb041d63d16e7c307c6a191c1cf183bace803cf2ce54df2

Download Submit
memory/2212-0-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2212-2-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2212-1-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2308-15-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2308-17-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download