39c6a6f56048b45ea0a126a7f1618f62da11f2adffb1727ea6d7322e65ff6b28

General

Target

NEAS.b6a952258c6722fa63d5dda475ff04c0.exe
Size

106KB
MD5

b6a952258c6722fa63d5dda475ff04c0
SHA1

3b3b4cdbcc5cbe3773615af3ab861463b4db2772
SHA256

39c6a6f56048b45ea0a126a7f1618f62da11f2adffb1727ea6d7322e65ff6b28
SHA512

0f52ed8a4c37d77046b00bfa03917bd59b69f9cc59f5eb241808eb65111cf6ae67a31278f508afdcca282eb94f7839cc849eac429dc4eb5b88fc2ff3c879bf60
SSDEEP

1536:TRiAXaKD5grAhdVA2VukXKzMf3liaL+SWzR+fy1ZZosMiZ7RtEs:liAXaKDLVaroj6SWzosZGyRtEs

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 8 IoCs

flow	pid	Process
41	1396	rundll32.exe
57	1396	rundll32.exe
58	1396	rundll32.exe
59	1396	rundll32.exe
75	1396	rundll32.exe
81	1396	rundll32.exe
86	1396	rundll32.exe
87	1396	rundll32.exe

Deletes itself 1 IoCs

pid	Process
868	dgozo.exe

Executes dropped EXE 1 IoCs

pid	Process
868	dgozo.exe

Loads dropped DLL 1 IoCs

pid	Process
1396	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

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-1-5-21-3811856890-180006922-3689258494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\pyibl\\crxcajtv.dll\",GetWindowClass"	rundll32.exe

Enumerates connected drives 3 TTPs 2 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

description	ioc	Process
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\b:	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

description	ioc	Process
File opened for modification	\??\PHYSICALDRIVE0	rundll32.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

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

pid	Process
4348	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1396	rundll32.exe
1396	rundll32.exe
1396	rundll32.exe
1396	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1396	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5020	NEAS.b6a952258c6722fa63d5dda475ff04c0.exe
868	dgozo.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 5020 wrote to memory of 2000	5020	NEAS.b6a952258c6722fa63d5dda475ff04c0.exe	91
PID 5020 wrote to memory of 2000	5020	NEAS.b6a952258c6722fa63d5dda475ff04c0.exe	91
PID 5020 wrote to memory of 2000	5020	NEAS.b6a952258c6722fa63d5dda475ff04c0.exe	91
PID 2000 wrote to memory of 4348	2000	cmd.exe	93
PID 2000 wrote to memory of 4348	2000	cmd.exe	93
PID 2000 wrote to memory of 4348	2000	cmd.exe	93
PID 2000 wrote to memory of 868	2000	cmd.exe	94
PID 2000 wrote to memory of 868	2000	cmd.exe	94
PID 2000 wrote to memory of 868	2000	cmd.exe	94
PID 868 wrote to memory of 1396	868	dgozo.exe	95
PID 868 wrote to memory of 1396	868	dgozo.exe	95
PID 868 wrote to memory of 1396	868	dgozo.exe	95

C:\Users\Admin\AppData\Local\Temp\NEAS.b6a952258c6722fa63d5dda475ff04c0.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.b6a952258c6722fa63d5dda475ff04c0.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5020
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\dgozo.exe "C:\Users\Admin\AppData\Local\Temp\NEAS.b6a952258c6722fa63d5dda475ff04c0.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2000
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - Runs ping.exe
    PID:4348
- - \??\c:\dgozo.exe
    c:\dgozo.exe "C:\Users\Admin\AppData\Local\Temp\NEAS.b6a952258c6722fa63d5dda475ff04c0.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:868
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\pyibl\crxcajtv.dll",GetWindowClass c:\dgozo.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)
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1396

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

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Downloads

C:\dgozo.exe

Filesize
106KB

MD5
da6569c3f2f77ee16b79f4c249aa010b

SHA1
ddd0fbe98e9cd64dd97ab645eb83f82fd91d45a7

SHA256
8d7deeaca4bdc10b3862d48ac20a9e343d66ce00d9db8ef3cfec1706df5d52f2

SHA512
6bc1136c1a9ce75363142060707fd57bdb3e37e44ed77efb45201b7b969c0c1ef806d0050b0da821856275d5a99c13104323daa20314aaa40009d52b11840b52

Download Submit
C:\pyibl\crxcajtv.dll

Filesize
63KB

MD5
06c39ca503305efbf7274f6bf9394f28

SHA1
bec4daadab49f1f58a951d9cc1b2d7c1e2ae8450

SHA256
19f33ba32f20dae1ea6a6b87824dc8e3e74527b34f9cd01a6e4f67e3e79dd867

SHA512
e6c8b19892b5ce5108909824ad37b0fe0eed2459939f0249133bf3e3c1470308d6d51aa3fbf42aabcbf37bb2412c8a27bff445e23dc0495910ec5f445055d931

Download Submit
\??\c:\dgozo.exe

Filesize
106KB

MD5
da6569c3f2f77ee16b79f4c249aa010b

SHA1
ddd0fbe98e9cd64dd97ab645eb83f82fd91d45a7

SHA256
8d7deeaca4bdc10b3862d48ac20a9e343d66ce00d9db8ef3cfec1706df5d52f2

SHA512
6bc1136c1a9ce75363142060707fd57bdb3e37e44ed77efb45201b7b969c0c1ef806d0050b0da821856275d5a99c13104323daa20314aaa40009d52b11840b52

Download Submit
\??\c:\pyibl\crxcajtv.dll

Filesize
63KB

MD5
06c39ca503305efbf7274f6bf9394f28

SHA1
bec4daadab49f1f58a951d9cc1b2d7c1e2ae8450

SHA256
19f33ba32f20dae1ea6a6b87824dc8e3e74527b34f9cd01a6e4f67e3e79dd867

SHA512
e6c8b19892b5ce5108909824ad37b0fe0eed2459939f0249133bf3e3c1470308d6d51aa3fbf42aabcbf37bb2412c8a27bff445e23dc0495910ec5f445055d931

Download Submit
memory/868-7-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/1396-10-0x0000000010000000-0x0000000010036000-memory.dmp

Filesize
216KB

Download
memory/1396-11-0x0000000000D20000-0x0000000000D22000-memory.dmp

Filesize
8KB

Download
memory/1396-12-0x0000000010000000-0x0000000010036000-memory.dmp

Filesize
216KB

Download
memory/1396-13-0x0000000000D20000-0x0000000000D22000-memory.dmp

Filesize
8KB

Download
memory/1396-15-0x0000000010000000-0x0000000010036000-memory.dmp

Filesize
216KB

Download
memory/1396-16-0x0000000010000000-0x0000000010036000-memory.dmp

Filesize
216KB

Download
memory/1396-17-0x0000000010000000-0x0000000010036000-memory.dmp

Filesize
216KB

Download
memory/5020-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/5020-2-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads