3624cb999e2bd4eae40b2b31253024f9980b89b6558004aff75a8910546c8931

General

Target

3624cb999e2bd4eae40b2b31253024f9980b89b6558004aff75a8910546c8931.exe
Size

72KB
MD5

1a8f83662f35bb6e47ae568d62918a5c
SHA1

5033608f379822d3609e62f7a696b52930ed018b
SHA256

3624cb999e2bd4eae40b2b31253024f9980b89b6558004aff75a8910546c8931
SHA512

e5eee50fb20aa6cf3d3a7925b765225e931754d2392a8a9d7ccdfefcb6816b37926e1820854ab0427009b735e774af293981158b68bcd3de4e6826ee8252ef73
SSDEEP

1536:5L5lxcQxgr9BcXzfGQz0/m4QdQiWC378JztYtfBpf4p7WtX4:blSQxgr9eXzd4/mxKIm+t3JI

Score

8^/10

aspackv2 bootkit persistence spyware stealer

Malware Config

Signatures

Blocklisted process makes network request 8 IoCs

flow	pid	Process
36	1064	rundll32.exe
37	1064	rundll32.exe
38	1064	rundll32.exe
64	1064	rundll32.exe
65	1064	rundll32.exe
67	1064	rundll32.exe
68	1064	rundll32.exe
74	1064	rundll32.exe

ASPack v2.12-2.42 2 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral2/files/0x000300000001ef8c-4.dat	aspack_v212_v242
behavioral2/files/0x000300000001ef8c-5.dat	aspack_v212_v242

Executes dropped EXE 1 IoCs

pid	Process
4820	epvbx.exe

Loads dropped DLL 1 IoCs

pid	Process
1064	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-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\vnbspziro\\bbeuxgk.dll\",GetWindowClass"	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

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

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1064	rundll32.exe
1064	rundll32.exe
1064	rundll32.exe
1064	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1064	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3268	3624cb999e2bd4eae40b2b31253024f9980b89b6558004aff75a8910546c8931.exe
4820	epvbx.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3268 wrote to memory of 3292	3268	3624cb999e2bd4eae40b2b31253024f9980b89b6558004aff75a8910546c8931.exe	86
PID 3268 wrote to memory of 3292	3268	3624cb999e2bd4eae40b2b31253024f9980b89b6558004aff75a8910546c8931.exe	86
PID 3268 wrote to memory of 3292	3268	3624cb999e2bd4eae40b2b31253024f9980b89b6558004aff75a8910546c8931.exe	86
PID 3292 wrote to memory of 380	3292	cmd.exe	88
PID 3292 wrote to memory of 380	3292	cmd.exe	88
PID 3292 wrote to memory of 380	3292	cmd.exe	88
PID 3292 wrote to memory of 4820	3292	cmd.exe	90
PID 3292 wrote to memory of 4820	3292	cmd.exe	90
PID 3292 wrote to memory of 4820	3292	cmd.exe	90
PID 4820 wrote to memory of 1064	4820	epvbx.exe	91
PID 4820 wrote to memory of 1064	4820	epvbx.exe	91
PID 4820 wrote to memory of 1064	4820	epvbx.exe	91

C:\Users\Admin\AppData\Local\Temp\3624cb999e2bd4eae40b2b31253024f9980b89b6558004aff75a8910546c8931.exe
"C:\Users\Admin\AppData\Local\Temp\3624cb999e2bd4eae40b2b31253024f9980b89b6558004aff75a8910546c8931.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3268
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\epvbx.exe "C:\Users\Admin\AppData\Local\Temp\3624cb999e2bd4eae40b2b31253024f9980b89b6558004aff75a8910546c8931.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3292
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - Runs ping.exe
    PID:380
- - \??\c:\epvbx.exe
    c:\epvbx.exe "C:\Users\Admin\AppData\Local\Temp\3624cb999e2bd4eae40b2b31253024f9980b89b6558004aff75a8910546c8931.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4820
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\vnbspziro\bbeuxgk.dll",GetWindowClass c:\epvbx.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:1064

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:\epvbx.exe

Filesize
72KB

MD5
61fcb938ce293e34d7193a1ac2aed57c

SHA1
aa5e4ff9c27bb08a16f560eb7910e556ae504f1f

SHA256
0f379d0ac50fb4bf6358c8b58bff094eaf4c5cc1560e79ac71633bb18dffc88c

SHA512
14f2c2b31f63a4201d8b8189eb41d44a20d262a5df0acb34b59965f907858346b192edc9ea13adf7075c3231228cb238d19c3c8c7f22d93fddf9f6ac0c59cad8

Download Submit
C:\vnbspziro\bbeuxgk.dll

Filesize
46KB

MD5
a3fd41430ddcaa55fde840788925406a

SHA1
dbdd87f5c1bbf6a6f44c2e2c4744675d5e4e75c2

SHA256
f57f9e54f4774c2b944fb070ae0c2a02cbb4b7686ab3207544c3ccaff0ff3dd9

SHA512
23109572cfc9a282ea3ec84d93bfe02303d27f365ad2d9f47f6234f91da14c64f80133cc5e49746dfcb65d2454b7e7c13eff59ba4bbc18e09d2fb1c630ba59c9

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

Filesize
72KB

MD5
61fcb938ce293e34d7193a1ac2aed57c

SHA1
aa5e4ff9c27bb08a16f560eb7910e556ae504f1f

SHA256
0f379d0ac50fb4bf6358c8b58bff094eaf4c5cc1560e79ac71633bb18dffc88c

SHA512
14f2c2b31f63a4201d8b8189eb41d44a20d262a5df0acb34b59965f907858346b192edc9ea13adf7075c3231228cb238d19c3c8c7f22d93fddf9f6ac0c59cad8

Download Submit
\??\c:\vnbspziro\bbeuxgk.dll

Filesize
46KB

MD5
a3fd41430ddcaa55fde840788925406a

SHA1
dbdd87f5c1bbf6a6f44c2e2c4744675d5e4e75c2

SHA256
f57f9e54f4774c2b944fb070ae0c2a02cbb4b7686ab3207544c3ccaff0ff3dd9

SHA512
23109572cfc9a282ea3ec84d93bfe02303d27f365ad2d9f47f6234f91da14c64f80133cc5e49746dfcb65d2454b7e7c13eff59ba4bbc18e09d2fb1c630ba59c9

Download Submit
memory/1064-10-0x0000000010000000-0x000000001002E000-memory.dmp

Filesize
184KB

Download
memory/1064-11-0x0000000010000000-0x000000001002E000-memory.dmp

Filesize
184KB

Download
memory/1064-12-0x0000000010000000-0x000000001002E000-memory.dmp

Filesize
184KB

Download
memory/3268-0-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/3268-2-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/4820-7-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads