5d73729ce22c10b9426307c34df159caec69795e2f86fa3c359ba566c2895f93

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
08/08/2023, 16:13

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General

Target

990678a6259902bc0a02eaadfbca4380_cryptolocker_JC.exe
Size

52KB
MD5

990678a6259902bc0a02eaadfbca4380
SHA1

93540e2c42db2bb8389de20eb42dfe212a8b5feb
SHA256

5d73729ce22c10b9426307c34df159caec69795e2f86fa3c359ba566c2895f93
SHA512

d3219ec33c10b07ede7aa5682688c28498116744f4e48b08b9488aedce3c90cb8b3cd34e50e4f29f31d078486f678c2d1c0257d530f13a3e2d510bba3a259400
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzp0ojjtJs:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7t

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2100	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2636	990678a6259902bc0a02eaadfbca4380_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
2636	990678a6259902bc0a02eaadfbca4380_cryptolocker_JC.exe
2100	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2636 wrote to memory of 2100	2636	990678a6259902bc0a02eaadfbca4380_cryptolocker_JC.exe	28
PID 2636 wrote to memory of 2100	2636	990678a6259902bc0a02eaadfbca4380_cryptolocker_JC.exe	28
PID 2636 wrote to memory of 2100	2636	990678a6259902bc0a02eaadfbca4380_cryptolocker_JC.exe	28
PID 2636 wrote to memory of 2100	2636	990678a6259902bc0a02eaadfbca4380_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\990678a6259902bc0a02eaadfbca4380_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\990678a6259902bc0a02eaadfbca4380_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2636
- 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:2100

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
52KB

MD5
a3143ad0119568400dca302c7c79fc41

SHA1
9b7d1a5aaf02d5c3dc40fc10cd30dfc1c7537405

SHA256
e136bdb6a615c5db49b7641849ce707b1ad80d93aa109c8190f731687477a383

SHA512
6c209eb249500288ad8b8ee700e7e265b15f32cdfa1778ebe32b4a9392dcc5a4f2baa9e152f9a95b90554b07e8ff2bde0af54fc9ba8211c9e08fa4427e3411c2

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

Filesize
52KB

MD5
a3143ad0119568400dca302c7c79fc41

SHA1
9b7d1a5aaf02d5c3dc40fc10cd30dfc1c7537405

SHA256
e136bdb6a615c5db49b7641849ce707b1ad80d93aa109c8190f731687477a383

SHA512
6c209eb249500288ad8b8ee700e7e265b15f32cdfa1778ebe32b4a9392dcc5a4f2baa9e152f9a95b90554b07e8ff2bde0af54fc9ba8211c9e08fa4427e3411c2

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

Filesize
52KB

MD5
a3143ad0119568400dca302c7c79fc41

SHA1
9b7d1a5aaf02d5c3dc40fc10cd30dfc1c7537405

SHA256
e136bdb6a615c5db49b7641849ce707b1ad80d93aa109c8190f731687477a383

SHA512
6c209eb249500288ad8b8ee700e7e265b15f32cdfa1778ebe32b4a9392dcc5a4f2baa9e152f9a95b90554b07e8ff2bde0af54fc9ba8211c9e08fa4427e3411c2

Download Submit
memory/2100-71-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2636-54-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2636-56-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2636-55-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download