vanillarat | 3d18fbbcd58e4f162059ff00d08510fcb43d90cf676ad8ecc929d5c36395f19f

Resubmissions

14/11/2024, 20:02

241114-yr8feasemg 10

14/11/2024, 19:59

241114-yqcx4ssdqp 10

Analysis

max time kernel
69s
max time network
77s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
14/11/2024, 19:59

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General

Target

yasser.exe
Size

114KB
MD5

5bf506720c41a2b752daa11398c6dc6b
SHA1

8c37bdd4eda3b71ea2ee17556763ab90c7067dba
SHA256

3d18fbbcd58e4f162059ff00d08510fcb43d90cf676ad8ecc929d5c36395f19f
SHA512

a6ca960e64547ef9f88a8479ce2663b1d2402864d077b68c3992bd00f7c447da0bf93bc474bf2c2bc9161d3ce34df01b16b4cfbc6f880d4f1b603a49f9c0428c
SSDEEP

3072:3gZApdYrD28fbJB2yLtyTIbjjxK3QdjrxivW+DXnH4vymb81w:3/pe1J0IbXtrxivW+D34vu

Score

10^/10

vanillarat discovery persistence rat

Malware Config

Signatures

VanillaRat
VanillaRat is an advanced remote administration tool coded in C#.
rat vanillarat
Vanillarat family
vanillarat

Vanilla Rat payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/1700-1-0x0000000001020000-0x0000000001042000-memory.dmp	vanillarat
behavioral1/files/0x0008000000015d59-5.dat	vanillarat
behavioral1/memory/2312-11-0x00000000002E0000-0x0000000000302000-memory.dmp	vanillarat

Executes dropped EXE 1 IoCs

pid	Process
2312	yasser.exe

Loads dropped DLL 1 IoCs

pid	Process
1700	yasser.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\yasser = "C:\\Users\\Admin\\AppData\\Roaming\\yasser.exe"	yasser.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	yasser.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	yasser.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1700	yasser.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1700 wrote to memory of 2312	1700	yasser.exe	30
PID 1700 wrote to memory of 2312	1700	yasser.exe	30
PID 1700 wrote to memory of 2312	1700	yasser.exe	30
PID 1700 wrote to memory of 2312	1700	yasser.exe	30

C:\Users\Admin\AppData\Local\Temp\yasser.exe
"C:\Users\Admin\AppData\Local\Temp\yasser.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1700
- C:\Users\Admin\AppData\Roaming\yasser.exe
  "C:\Users\Admin\AppData\Roaming\yasser.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  PID:2312

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Roaming\yasser.exe

Filesize
114KB

MD5
5bf506720c41a2b752daa11398c6dc6b

SHA1
8c37bdd4eda3b71ea2ee17556763ab90c7067dba

SHA256
3d18fbbcd58e4f162059ff00d08510fcb43d90cf676ad8ecc929d5c36395f19f

SHA512
a6ca960e64547ef9f88a8479ce2663b1d2402864d077b68c3992bd00f7c447da0bf93bc474bf2c2bc9161d3ce34df01b16b4cfbc6f880d4f1b603a49f9c0428c

Download Submit
memory/1700-0-0x00000000748AE000-0x00000000748AF000-memory.dmp

Filesize
4KB

Download
memory/1700-1-0x0000000001020000-0x0000000001042000-memory.dmp

Filesize
136KB

Download
memory/1700-2-0x00000000748A0000-0x0000000074F8E000-memory.dmp

Filesize
6.9MB

Download
memory/1700-10-0x00000000748A0000-0x0000000074F8E000-memory.dmp

Filesize
6.9MB

Download
memory/2312-12-0x00000000748A0000-0x0000000074F8E000-memory.dmp

Filesize
6.9MB

Download
memory/2312-13-0x00000000748A0000-0x0000000074F8E000-memory.dmp

Filesize
6.9MB

Download
memory/2312-11-0x00000000002E0000-0x0000000000302000-memory.dmp

Filesize
136KB

Download
memory/2312-14-0x00000000748A0000-0x0000000074F8E000-memory.dmp

Filesize
6.9MB

Download
memory/2312-15-0x00000000748A0000-0x0000000074F8E000-memory.dmp

Filesize
6.9MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads