f0cac61298b53cda1ec85091daae4a766287aaac53c95a9c15253a0cc2b16d53

General

Target

f0cac61298b53cda1ec85091daae4a766287aaac53c95a9c15253a0cc2b16d53.exe
Size

405KB
MD5

39c17eda4092dd49c21efb670b2d1ad8
SHA1

b1fd01b3e23736ed0c328f27b8735a2dde3fdf5b
SHA256

f0cac61298b53cda1ec85091daae4a766287aaac53c95a9c15253a0cc2b16d53
SHA512

f0ef7cbacac315f587ee5f3570135bb34432e72a7d77f941b4d462a2891cb8b5c834f333612e4ecefdbeda99ed3937dada83bcfb446401dc3e887ee9a7d6fb20
SSDEEP

6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4:gtRfJcNYFNm8UhlZGse

Score

8^/10

bootkit persistence spyware stealer

Malware Config

Signatures

Blocklisted process makes network request 9 IoCs

Processes:

rundll32.exe

flow	pid	process
9	3264	rundll32.exe
10	3264	rundll32.exe
11	3264	rundll32.exe
12	3264	rundll32.exe
29	3264	rundll32.exe
30	3264	rundll32.exe
37	3264	rundll32.exe
40	3264	rundll32.exe
45	3264	rundll32.exe

Deletes itself 1 IoCs

Processes:

jxnqn.exe

pid process

4844 jxnqn.exe
Executes dropped EXE 1 IoCs

Processes:

jxnqn.exe

pid process

4844 jxnqn.exe
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

3264 rundll32.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

pid	process
4844	jxnqn.exe

pid	process
4844	jxnqn.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

rundll32.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Dotx = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\cytgc\\yxbjramlj.dll\",Verify"	rundll32.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

rundll32.exe

description	ioc	process
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
bootkit persistence

Bootkit
T1542.003

Processes:

rundll32.exe

description ioc process

File opened for modification \??\PHYSICALDRIVE0 rundll32.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

rundll32.exe

pid process

3264 rundll32.exe
Drops file in Program Files directory 2 IoCs

Processes:

jxnqn.exe

description ioc process

File opened for modification \??\c:\Program Files\cytgc jxnqn.exe
File created \??\c:\Program Files\cytgc\yxbjramlj.dll jxnqn.exe

description	ioc	process
File opened for modification	\??\PHYSICALDRIVE0	rundll32.exe

description	ioc	process
File opened for modification	\??\c:\Program Files\cytgc	jxnqn.exe
File created	\??\c:\Program Files\cytgc\yxbjramlj.dll	jxnqn.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

2696 PING.EXE

pid	process
2696	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

rundll32.exe

pid	process
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rundll32.exe

description pid process

Token: SeDebugPrivilege 3264 rundll32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

f0cac61298b53cda1ec85091daae4a766287aaac53c95a9c15253a0cc2b16d53.exejxnqn.exe

pid process

3316 f0cac61298b53cda1ec85091daae4a766287aaac53c95a9c15253a0cc2b16d53.exe
4844 jxnqn.exe

description	pid	process
Token: SeDebugPrivilege	3264	rundll32.exe

pid	process
3316	f0cac61298b53cda1ec85091daae4a766287aaac53c95a9c15253a0cc2b16d53.exe
4844	jxnqn.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

f0cac61298b53cda1ec85091daae4a766287aaac53c95a9c15253a0cc2b16d53.execmd.exejxnqn.exe

description	pid	process	target process
PID 3316 wrote to memory of 3700	3316	f0cac61298b53cda1ec85091daae4a766287aaac53c95a9c15253a0cc2b16d53.exe	cmd.exe
PID 3316 wrote to memory of 3700	3316	f0cac61298b53cda1ec85091daae4a766287aaac53c95a9c15253a0cc2b16d53.exe	cmd.exe
PID 3316 wrote to memory of 3700	3316	f0cac61298b53cda1ec85091daae4a766287aaac53c95a9c15253a0cc2b16d53.exe	cmd.exe
PID 3700 wrote to memory of 2696	3700	cmd.exe	PING.EXE
PID 3700 wrote to memory of 2696	3700	cmd.exe	PING.EXE
PID 3700 wrote to memory of 2696	3700	cmd.exe	PING.EXE
PID 3700 wrote to memory of 4844	3700	cmd.exe	jxnqn.exe
PID 3700 wrote to memory of 4844	3700	cmd.exe	jxnqn.exe
PID 3700 wrote to memory of 4844	3700	cmd.exe	jxnqn.exe
PID 4844 wrote to memory of 3264	4844	jxnqn.exe	rundll32.exe
PID 4844 wrote to memory of 3264	4844	jxnqn.exe	rundll32.exe
PID 4844 wrote to memory of 3264	4844	jxnqn.exe	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\f0cac61298b53cda1ec85091daae4a766287aaac53c95a9c15253a0cc2b16d53.exe
"C:\Users\Admin\AppData\Local\Temp\f0cac61298b53cda1ec85091daae4a766287aaac53c95a9c15253a0cc2b16d53.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3316

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\jxnqn.exe "C:\Users\Admin\AppData\Local\Temp\f0cac61298b53cda1ec85091daae4a766287aaac53c95a9c15253a0cc2b16d53.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3700

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 2
3⤵
- Runs ping.exe
PID:2696

C:\Users\Admin\AppData\Local\Temp\jxnqn.exe
C:\Users\Admin\AppData\Local\Temp\\jxnqn.exe "C:\Users\Admin\AppData\Local\Temp\f0cac61298b53cda1ec85091daae4a766287aaac53c95a9c15253a0cc2b16d53.exe"
3⤵
- Deletes itself
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4844

\??\c:\windows\SysWOW64\rundll32.exe
c:\windows\system32\rundll32.exe "c:\Program Files\cytgc\yxbjramlj.dll",Verify C:\Users\Admin\AppData\Local\Temp\jxnqn.exe
4⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3264

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

2

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

2

T1082

Remote System Discovery

1

T1018

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\jxnqn.exe
Filesize
405KB

MD5
e177f6d28b89cae094b0c2aa4e783bb2

SHA1
0e469d6c8bcf64eac8ed6df1d4321391c69cad2d

SHA256
45ffd1e48a59ccf6c60bb190164bcda1b709ea4d4f8110a76119397daa50a771

SHA512
fcce9c262c7f4c9efa0d72e544ec9a49e5875046e41f0d66f9eadd7089a29ba4837c556b83d8e39898898ace8fd0b27268e906e1b68df44055635ce1ac7d011e

Download Submit
\??\c:\Program Files\cytgc\yxbjramlj.dll
Filesize
228KB

MD5
2b7523fbe49351efaffc20e2692aae0b

SHA1
d2dea45d79b46a88e203af88a76dc0840abbbbbb

SHA256
c293bd011ac47565a646c6b910fc4e5192d697c7ddd6da7a55444d6dc3726e8e

SHA512
788997897456d69c9a21adda6510693578b8e1dc4bbbe5aae31b15bf58837ba40d9adddd54ab7607bf7b3479b58706ec14b0dfb344391ddfcbde948206237576

Download Submit
memory/3264-10-0x0000000010000000-0x0000000010080000-memory.dmp

Filesize
512KB

Download
memory/3264-11-0x0000000010000000-0x0000000010080000-memory.dmp

Filesize
512KB

Download
memory/3264-13-0x0000000010000000-0x0000000010080000-memory.dmp

Filesize
512KB

Download
memory/3316-0-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/3316-2-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/4844-7-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads