3d62cd87f9d733bc8378302462705d7c90e4953c5a8c380ae294244495ced1f0

General

Target

NEAS.e1827e26f637a0573fc4e4c3995ded20.exe
Size

83KB
MD5

e1827e26f637a0573fc4e4c3995ded20
SHA1

3d36efa17e7e96ddfa1697f2f7f288895543a695
SHA256

3d62cd87f9d733bc8378302462705d7c90e4953c5a8c380ae294244495ced1f0
SHA512

6e189773c22bdcb29cd689fda2713808b53b5440d72c5cf71d982748dd6ba0e449f3bbb802a108a4e206229761b8f4218be490eb33be1d017b6618b2a4b70e53
SSDEEP

1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlB:eSABNx6vb4RoI4pyjHYLhal01UoPX+h0

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 3 IoCs

flow	pid	Process
55	2960	rundll32.exe
54	2960	rundll32.exe
69	2960	rundll32.exe

ACProtect 1.3x - 1.4x DLL software 2 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x0006000000022e30-8.dat	acprotect
behavioral2/files/0x0006000000022e30-9.dat	acprotect

Deletes itself 1 IoCs

pid	Process
4488	ypplkl.exe

Executes dropped EXE 1 IoCs

pid	Process
4488	ypplkl.exe

Loads dropped DLL 1 IoCs

pid	Process
2960	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:\\wbcbfo\\skxhun.dll\",DoVirusScan"	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
3916	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2960	rundll32.exe
2960	rundll32.exe
2960	rundll32.exe
2960	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2960	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1336	NEAS.e1827e26f637a0573fc4e4c3995ded20.exe
4488	ypplkl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1336 wrote to memory of 5056	1336	NEAS.e1827e26f637a0573fc4e4c3995ded20.exe	89
PID 1336 wrote to memory of 5056	1336	NEAS.e1827e26f637a0573fc4e4c3995ded20.exe	89
PID 1336 wrote to memory of 5056	1336	NEAS.e1827e26f637a0573fc4e4c3995ded20.exe	89
PID 5056 wrote to memory of 3916	5056	cmd.exe	91
PID 5056 wrote to memory of 3916	5056	cmd.exe	91
PID 5056 wrote to memory of 3916	5056	cmd.exe	91
PID 5056 wrote to memory of 4488	5056	cmd.exe	93
PID 5056 wrote to memory of 4488	5056	cmd.exe	93
PID 5056 wrote to memory of 4488	5056	cmd.exe	93
PID 4488 wrote to memory of 2960	4488	ypplkl.exe	94
PID 4488 wrote to memory of 2960	4488	ypplkl.exe	94
PID 4488 wrote to memory of 2960	4488	ypplkl.exe	94

C:\Users\Admin\AppData\Local\Temp\NEAS.e1827e26f637a0573fc4e4c3995ded20.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.e1827e26f637a0573fc4e4c3995ded20.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1336
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\ypplkl.exe "C:\Users\Admin\AppData\Local\Temp\NEAS.e1827e26f637a0573fc4e4c3995ded20.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5056
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - Runs ping.exe
    PID:3916
- - \??\c:\ypplkl.exe
    c:\ypplkl.exe "C:\Users\Admin\AppData\Local\Temp\NEAS.e1827e26f637a0573fc4e4c3995ded20.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4488
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\wbcbfo\skxhun.dll",DoVirusScan c:\ypplkl.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:2960

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

C:\wbcbfo\skxhun.dll

Filesize
50KB

MD5
cbfc06794d16ace6adf42210183fc1b9

SHA1
74fc68a2af225b0aca954b3684940747511013c5

SHA256
b2d21c40c5bfc0f7695945946fa1cdd4eaf2f66a8391ddde6307c5f765fbf525

SHA512
181dbe8b63e28a81cb8e0b7240df8745da350e1ab433b157b8b4fd36aa10f0782e807c09563bcffe37cfe64aa1b514b2cc1f179fbcba422d96867179d88e13c9

Download Submit
C:\ypplkl.exe

Filesize
83KB

MD5
789627339a1766502af6b1a38ef94dd1

SHA1
408a5974620bb45db8d5852f2aaf815c5bda27df

SHA256
b94d16ac8c1a5f4b60d4ca811b9461000df8eec294252ba6db01aca0e6e27854

SHA512
820fa56c07a54805fad7b423ed3cd7b49450d32758ba53334cefe23da334382422ec4823ecc6851a79be8616ae5fa44540f6ede11c3cbf010c594ee1c1dc038d

Download Submit
\??\c:\wbcbfo\skxhun.dll

Filesize
50KB

MD5
cbfc06794d16ace6adf42210183fc1b9

SHA1
74fc68a2af225b0aca954b3684940747511013c5

SHA256
b2d21c40c5bfc0f7695945946fa1cdd4eaf2f66a8391ddde6307c5f765fbf525

SHA512
181dbe8b63e28a81cb8e0b7240df8745da350e1ab433b157b8b4fd36aa10f0782e807c09563bcffe37cfe64aa1b514b2cc1f179fbcba422d96867179d88e13c9

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

Filesize
83KB

MD5
789627339a1766502af6b1a38ef94dd1

SHA1
408a5974620bb45db8d5852f2aaf815c5bda27df

SHA256
b94d16ac8c1a5f4b60d4ca811b9461000df8eec294252ba6db01aca0e6e27854

SHA512
820fa56c07a54805fad7b423ed3cd7b49450d32758ba53334cefe23da334382422ec4823ecc6851a79be8616ae5fa44540f6ede11c3cbf010c594ee1c1dc038d

Download Submit
memory/1336-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1336-2-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2960-10-0x0000000010000000-0x0000000010032000-memory.dmp

Filesize
200KB

Download
memory/2960-11-0x0000000010000000-0x0000000010032000-memory.dmp

Filesize
200KB

Download
memory/2960-12-0x0000000010000000-0x0000000010032000-memory.dmp

Filesize
200KB

Download
memory/4488-7-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads