19e6fea6a1228c6fd4e439e3eef5bda22986c5585c798013c871a7556817c981

Analysis

max time kernel
151s
max time network
155s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
31/10/2023, 16:42

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General

Target

NEAS.2023-09-08_2e1d665b424e661226880386adc38fd0_cryptolocker_JC.exe
Size

40KB
MD5

2e1d665b424e661226880386adc38fd0
SHA1

41ab82bd482c3f7a42ccb15cb651cca8ae11da12
SHA256

19e6fea6a1228c6fd4e439e3eef5bda22986c5585c798013c871a7556817c981
SHA512

1ef84b01512c52421963afa04f561ff65f1acd301829202c9abad81cec43af2c812ef4054dfa1a67fb03bd7284c750578dafeafb7107addcd0c790f7945375cf
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGpebVIYLHA3Kxw:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XJ

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1232	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1984	NEAS.2023-09-08_2e1d665b424e661226880386adc38fd0_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 UnmapMainImage 2 IoCs

pid	Process
1984	NEAS.2023-09-08_2e1d665b424e661226880386adc38fd0_cryptolocker_JC.exe
1232	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 1232	1984	NEAS.2023-09-08_2e1d665b424e661226880386adc38fd0_cryptolocker_JC.exe	28
PID 1984 wrote to memory of 1232	1984	NEAS.2023-09-08_2e1d665b424e661226880386adc38fd0_cryptolocker_JC.exe	28
PID 1984 wrote to memory of 1232	1984	NEAS.2023-09-08_2e1d665b424e661226880386adc38fd0_cryptolocker_JC.exe	28
PID 1984 wrote to memory of 1232	1984	NEAS.2023-09-08_2e1d665b424e661226880386adc38fd0_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\NEAS.2023-09-08_2e1d665b424e661226880386adc38fd0_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.2023-09-08_2e1d665b424e661226880386adc38fd0_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1984
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:1232

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\hurok.exe

Filesize
40KB

MD5
bd8ab061694374b2b67d7e2e4f5b26ca

SHA1
1f0246f20c7c6cb2e048f9da2f486297c5f41039

SHA256
063029d75c378ae6d2082bc8d4120e80fdc3c876e8268bb086878186393b0d0c

SHA512
05f3daa0dabb1458e4970a5b3a883da6881d8c5961ed822ef62a2d6f56585c7f70653523404ecf0da57c2cff32222db57634a5c2864f893ab3043db106b27066

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

Filesize
40KB

MD5
bd8ab061694374b2b67d7e2e4f5b26ca

SHA1
1f0246f20c7c6cb2e048f9da2f486297c5f41039

SHA256
063029d75c378ae6d2082bc8d4120e80fdc3c876e8268bb086878186393b0d0c

SHA512
05f3daa0dabb1458e4970a5b3a883da6881d8c5961ed822ef62a2d6f56585c7f70653523404ecf0da57c2cff32222db57634a5c2864f893ab3043db106b27066

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

Filesize
40KB

MD5
bd8ab061694374b2b67d7e2e4f5b26ca

SHA1
1f0246f20c7c6cb2e048f9da2f486297c5f41039

SHA256
063029d75c378ae6d2082bc8d4120e80fdc3c876e8268bb086878186393b0d0c

SHA512
05f3daa0dabb1458e4970a5b3a883da6881d8c5961ed822ef62a2d6f56585c7f70653523404ecf0da57c2cff32222db57634a5c2864f893ab3043db106b27066

Download Submit
memory/1232-16-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1984-0-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/1984-2-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/1984-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download