3a79ce3c6daae66e2790c91fc346815a75c31dc1e03cb78949225c74d458402c

Analysis

max time kernel
160s
max time network
180s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
03/12/2022, 20:43

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General

Target

3a79ce3c6daae66e2790c91fc346815a75c31dc1e03cb78949225c74d458402c.exe
Size

240KB
MD5

0f2b364d3fb2f7891dc08e3ac9810b03
SHA1

26bf2d315a39960ae0b78dd1e72f93931b0a8ffe
SHA256

3a79ce3c6daae66e2790c91fc346815a75c31dc1e03cb78949225c74d458402c
SHA512

2cbbc70b85bd0ac5e919a6fbd6707618204b4b571198e67444bf7f9e6f0a3740bd918d1994831999b1c5dd1dd783c5029a9743f9fa965c70fd05a93e1aae9ed0
SSDEEP

3072:1VHgCc4xGvbwcU9KQ2BBAHmaPxlVoNb5EG:oCc4xGxWKQ2Bonx4

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1748	jusched.exe

Loads dropped DLL 2 IoCs

pid	Process
892	3a79ce3c6daae66e2790c91fc346815a75c31dc1e03cb78949225c74d458402c.exe
892	3a79ce3c6daae66e2790c91fc346815a75c31dc1e03cb78949225c74d458402c.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	3a79ce3c6daae66e2790c91fc346815a75c31dc1e03cb78949225c74d458402c.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run	3a79ce3c6daae66e2790c91fc346815a75c31dc1e03cb78949225c74d458402c.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\9a03db78\jusched.exe	3a79ce3c6daae66e2790c91fc346815a75c31dc1e03cb78949225c74d458402c.exe
File created	C:\Program Files (x86)\9a03db78\9a03db78	3a79ce3c6daae66e2790c91fc346815a75c31dc1e03cb78949225c74d458402c.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\Update23.job	3a79ce3c6daae66e2790c91fc346815a75c31dc1e03cb78949225c74d458402c.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 892 wrote to memory of 1748	892	3a79ce3c6daae66e2790c91fc346815a75c31dc1e03cb78949225c74d458402c.exe	28
PID 892 wrote to memory of 1748	892	3a79ce3c6daae66e2790c91fc346815a75c31dc1e03cb78949225c74d458402c.exe	28
PID 892 wrote to memory of 1748	892	3a79ce3c6daae66e2790c91fc346815a75c31dc1e03cb78949225c74d458402c.exe	28
PID 892 wrote to memory of 1748	892	3a79ce3c6daae66e2790c91fc346815a75c31dc1e03cb78949225c74d458402c.exe	28

C:\Users\Admin\AppData\Local\Temp\3a79ce3c6daae66e2790c91fc346815a75c31dc1e03cb78949225c74d458402c.exe
"C:\Users\Admin\AppData\Local\Temp\3a79ce3c6daae66e2790c91fc346815a75c31dc1e03cb78949225c74d458402c.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:892
- C:\Program Files (x86)\9a03db78\jusched.exe
  "C:\Program Files (x86)\9a03db78\jusched.exe"
  2⤵
  - Executes dropped EXE
  PID:1748

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\9a03db78\9a03db78

Filesize
17B

MD5
134c1d489094d6d3399f65b0e9aebc1f

SHA1
612a57fbe6ed3ab9c15b39451171d813314a28d5

SHA256
54f9150d1268f7b4b83dd9fc3ec32274bf749715a5806ff3ca5262f5427d6781

SHA512
b09bf60e4850d05261d81a124a647dd111f42480224eae8a3bd2f64736c38119953703f868ad34194a7ae6dad6aabff4081ba73df262bbe9f5327867c56a48ed

Download Submit
C:\Program Files (x86)\9a03db78\jusched.exe

Filesize
240KB

MD5
af06bd1ea217afd8a20909a219623e39

SHA1
7d89dbc611f0023dc1eb7127e182ce5526f8072a

SHA256
3443dd810dacc5e4c856bb014d783fd93f154175186c195603edbcd400894b08

SHA512
5e208892c0e4393163eb550eddc717d7101261ab5f19dc1ebd6a18c8c8d376b54549a46c45baf82fcceff1e833e7a26cb3a0feb9e0e7da6f83b3b47c0e5e293b

Download Submit
\Program Files (x86)\9a03db78\jusched.exe

Filesize
240KB

MD5
af06bd1ea217afd8a20909a219623e39

SHA1
7d89dbc611f0023dc1eb7127e182ce5526f8072a

SHA256
3443dd810dacc5e4c856bb014d783fd93f154175186c195603edbcd400894b08

SHA512
5e208892c0e4393163eb550eddc717d7101261ab5f19dc1ebd6a18c8c8d376b54549a46c45baf82fcceff1e833e7a26cb3a0feb9e0e7da6f83b3b47c0e5e293b

Download Submit
\Program Files (x86)\9a03db78\jusched.exe

Filesize
240KB

MD5
af06bd1ea217afd8a20909a219623e39

SHA1
7d89dbc611f0023dc1eb7127e182ce5526f8072a

SHA256
3443dd810dacc5e4c856bb014d783fd93f154175186c195603edbcd400894b08

SHA512
5e208892c0e4393163eb550eddc717d7101261ab5f19dc1ebd6a18c8c8d376b54549a46c45baf82fcceff1e833e7a26cb3a0feb9e0e7da6f83b3b47c0e5e293b

Download Submit
memory/892-54-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/892-55-0x0000000075521000-0x0000000075523000-memory.dmp

Filesize
8KB

Download
memory/892-56-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/892-61-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/1748-62-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download