ad2b14433fcc95acfa41bcda4a7f287b60c956114fcf476396dc4a8df2030eda

General

Target

ad2b14433fcc95acfa41bcda4a7f287b60c956114fcf476396dc4a8df2030eda.exe
Size

224KB
MD5

7bd5164ee78d24c88b50a2f902e2d9aa
SHA1

552ac1b320c0feb3e3de70c90ff4cea41d17c1d7
SHA256

ad2b14433fcc95acfa41bcda4a7f287b60c956114fcf476396dc4a8df2030eda
SHA512

5ded8db0954d667e133e566abb0c5194582b0f8568ee49094832f2369cac2cd1997fc58a88948d84f2786fa38ededc507f3a1c5b192b46e8358bcc6eef2e7c1c
SSDEEP

6144:sXJ88CQbV3dj3rHwzBt5vxcalHqqFJqokNbb8pWd1DO:ahCQbR5Ut5r8okN1U

Score

9^/10

bootkit persistence spyware stealer

Malware Config

Signatures

Detects executables containing base64 encoded User Agent 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2720-27-0x0000000010000000-0x0000000010065000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/2720-28-0x0000000010000000-0x0000000010065000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/2720-29-0x0000000010000000-0x0000000010065000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/2720-34-0x0000000010000000-0x0000000010065000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/2720-35-0x0000000010000000-0x0000000010065000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Deletes itself 1 IoCs

Processes:

hnnjjuro.exe

pid process

2784 hnnjjuro.exe
Executes dropped EXE 2 IoCs

Processes:

hnnjjuro.exewjthjx.exe

pid process

2784 hnnjjuro.exe
2720 wjthjx.exe
Loads dropped DLL 7 IoCs

Processes:

cmd.exehnnjjuro.exewjthjx.exe

pid process

2916 cmd.exe
2916 cmd.exe
2784 hnnjjuro.exe
2720 wjthjx.exe
2720 wjthjx.exe
2720 wjthjx.exe
2720 wjthjx.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
2784	hnnjjuro.exe

pid	process
2784	hnnjjuro.exe
2720	wjthjx.exe

pid	process
2916	cmd.exe
2916	cmd.exe
2784	hnnjjuro.exe
2720	wjthjx.exe
2720	wjthjx.exe
2720	wjthjx.exe
2720	wjthjx.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

wjthjx.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\Flash = "c:\\Program Files\\akvxw\\wjthjx.exe \"c:\\Program Files\\akvxw\\wjthjx.dll\",CreateFlashAdapterHlink"	wjthjx.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:

wjthjx.exe

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

wjthjx.exe

description ioc process

File opened for modification \??\PHYSICALDRIVE0 wjthjx.exe

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

Drops file in Program Files directory 4 IoCs

Processes:

hnnjjuro.exe

description	ioc	process
File opened for modification	\??\c:\Program Files\akvxw	hnnjjuro.exe
File created	\??\c:\Program Files\akvxw\wjthjx.dll	hnnjjuro.exe
File created	\??\c:\Program Files\akvxw\wjthjx.exe	hnnjjuro.exe
File opened for modification	\??\c:\Program Files\akvxw\wjthjx.exe	hnnjjuro.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:

wjthjx.exe

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

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1748 PING.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

wjthjx.exe

pid process

2720 wjthjx.exe
2720 wjthjx.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

wjthjx.exe

description pid process

Token: SeDebugPrivilege 2720 wjthjx.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

ad2b14433fcc95acfa41bcda4a7f287b60c956114fcf476396dc4a8df2030eda.exehnnjjuro.exe

pid process

2064 ad2b14433fcc95acfa41bcda4a7f287b60c956114fcf476396dc4a8df2030eda.exe
2784 hnnjjuro.exe

pid	process
1748	PING.EXE

pid	process
2720	wjthjx.exe
2720	wjthjx.exe

description	pid	process
Token: SeDebugPrivilege	2720	wjthjx.exe

pid	process
2064	ad2b14433fcc95acfa41bcda4a7f287b60c956114fcf476396dc4a8df2030eda.exe
2784	hnnjjuro.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

ad2b14433fcc95acfa41bcda4a7f287b60c956114fcf476396dc4a8df2030eda.execmd.exehnnjjuro.exe

description	pid	process	target process
PID 2064 wrote to memory of 2916	2064	ad2b14433fcc95acfa41bcda4a7f287b60c956114fcf476396dc4a8df2030eda.exe	cmd.exe
PID 2064 wrote to memory of 2916	2064	ad2b14433fcc95acfa41bcda4a7f287b60c956114fcf476396dc4a8df2030eda.exe	cmd.exe
PID 2064 wrote to memory of 2916	2064	ad2b14433fcc95acfa41bcda4a7f287b60c956114fcf476396dc4a8df2030eda.exe	cmd.exe
PID 2064 wrote to memory of 2916	2064	ad2b14433fcc95acfa41bcda4a7f287b60c956114fcf476396dc4a8df2030eda.exe	cmd.exe
PID 2916 wrote to memory of 1748	2916	cmd.exe	PING.EXE
PID 2916 wrote to memory of 1748	2916	cmd.exe	PING.EXE
PID 2916 wrote to memory of 1748	2916	cmd.exe	PING.EXE
PID 2916 wrote to memory of 1748	2916	cmd.exe	PING.EXE
PID 2916 wrote to memory of 2784	2916	cmd.exe	hnnjjuro.exe
PID 2916 wrote to memory of 2784	2916	cmd.exe	hnnjjuro.exe
PID 2916 wrote to memory of 2784	2916	cmd.exe	hnnjjuro.exe
PID 2916 wrote to memory of 2784	2916	cmd.exe	hnnjjuro.exe
PID 2784 wrote to memory of 2720	2784	hnnjjuro.exe	wjthjx.exe
PID 2784 wrote to memory of 2720	2784	hnnjjuro.exe	wjthjx.exe
PID 2784 wrote to memory of 2720	2784	hnnjjuro.exe	wjthjx.exe
PID 2784 wrote to memory of 2720	2784	hnnjjuro.exe	wjthjx.exe

C:\Users\Admin\AppData\Local\Temp\ad2b14433fcc95acfa41bcda4a7f287b60c956114fcf476396dc4a8df2030eda.exe
"C:\Users\Admin\AppData\Local\Temp\ad2b14433fcc95acfa41bcda4a7f287b60c956114fcf476396dc4a8df2030eda.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2064

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\hnnjjuro.exe "C:\Users\Admin\AppData\Local\Temp\ad2b14433fcc95acfa41bcda4a7f287b60c956114fcf476396dc4a8df2030eda.exe"
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2916

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 2
3⤵
- Runs ping.exe
PID:1748

C:\Users\Admin\AppData\Local\Temp\hnnjjuro.exe
C:\Users\Admin\AppData\Local\Temp\\hnnjjuro.exe "C:\Users\Admin\AppData\Local\Temp\ad2b14433fcc95acfa41bcda4a7f287b60c956114fcf476396dc4a8df2030eda.exe"
3⤵
- Deletes itself
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2784

\??\c:\Program Files\akvxw\wjthjx.exe
"c:\Program Files\akvxw\wjthjx.exe" "c:\Program Files\akvxw\wjthjx.dll",CreateFlashAdapter C:\Users\Admin\AppData\Local\Temp\hnnjjuro.exe
4⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2720

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Peripheral Device Discovery

Query Registry

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Program Files\akvxw\wjthjx.dll

Filesize
132KB

MD5
4e1e7c0e8ca3012beeed48f6e9821ba9

SHA1
1f9a5c8bd16dcba4310335ed2fea754899d2ae41

SHA256
c57d44bd0832e585ad8064bbfb39e39dd762e7c9f824a540eb511bdce025048d

SHA512
e27b4d273089658e1060b7233a3eb17e61c0eec63cf96429902f4a5230fae5e4b1e17ae2a02fecca0491742f1170773e8edc896b07a2014829edb59d62de3f24

Download Submit
\Program Files\akvxw\wjthjx.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

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

Filesize
224KB

MD5
2b97157a395fbed24a64e6bf6bff95a2

SHA1
91c0104674b711dde9cc0a702de2a563d6f7f4c3

SHA256
fc5a186da4bb336bc375940cdbfc8fcdc827fdba5e8720310956d4b7938e73f7

SHA512
5fd8dc790544f3b9214edba32c236e0e5e0655c96fe5b5c11083afba3010ef2f304fdede7c3d4a6d50e897707ebe218b8136e94c46671b8a7ab7111443b7d4fa

Download Submit
memory/2064-1-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2064-3-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2064-0-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2720-27-0x0000000010000000-0x0000000010065000-memory.dmp

Filesize
404KB

Download
memory/2720-23-0x0000000010000000-0x0000000010065000-memory.dmp

Filesize
404KB

Download
memory/2720-28-0x0000000010000000-0x0000000010065000-memory.dmp

Filesize
404KB

Download
memory/2720-29-0x0000000010000000-0x0000000010065000-memory.dmp

Filesize
404KB

Download
memory/2720-34-0x0000000010000000-0x0000000010065000-memory.dmp

Filesize
404KB

Download
memory/2720-35-0x0000000010000000-0x0000000010065000-memory.dmp

Filesize
404KB

Download
memory/2784-16-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2784-9-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads