18a333f048ee9d4b2d4113e10e51f0768520910d5c0ee59d4772c8cf79151061

General

Target

18a333f048ee9d4b2d4113e10e51f0768520910d5c0ee59d4772c8cf79151061.exe
Size

70KB
MD5

8fd329d690e0187aa4663e46c01d7e63
SHA1

50fa42f9d544710f4db75fffd39e1636fc224944
SHA256

18a333f048ee9d4b2d4113e10e51f0768520910d5c0ee59d4772c8cf79151061
SHA512

3cc0ec5301b7dfa10d6fee9d9a4474b01c35b745ed0e9b93d59d005abe5239e465f51364ca259403dd63bb1c57677d5114fe56ef50f7a6aea7d1ed5498e5ac22
SSDEEP

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

Score

8^/10

aspackv2 bootkit persistence spyware stealer

Malware Config

Signatures

Blocklisted process makes network request 11 IoCs

flow	pid	Process
2	2240	rundll32.exe
6	2240	rundll32.exe
5	2240	rundll32.exe
8	2240	rundll32.exe
9	2240	rundll32.exe
10	2240	rundll32.exe
13	2240	rundll32.exe
14	2240	rundll32.exe
15	2240	rundll32.exe
17	2240	rundll32.exe
18	2240	rundll32.exe

ASPack v2.12-2.42 2 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral1/files/0x000b000000012021-3.dat	aspack_v212_v242
behavioral1/files/0x000b000000012021-5.dat	aspack_v212_v242

Deletes itself 1 IoCs

pid	Process
2032	svyorrrcq.exe

Executes dropped EXE 1 IoCs

pid	Process
2032	svyorrrcq.exe

Loads dropped DLL 4 IoCs

pid	Process
2240	rundll32.exe
2240	rundll32.exe
2240	rundll32.exe
2240	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-1-5-21-3185155662-718608226-894467740-1000\Software\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\uquuwcs\\mwwejc.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)	\??\q:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\t:	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)	\??\e:	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
2016	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2240	rundll32.exe
2240	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2240	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2068	18a333f048ee9d4b2d4113e10e51f0768520910d5c0ee59d4772c8cf79151061.exe
2032	svyorrrcq.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2068 wrote to memory of 1364	2068	18a333f048ee9d4b2d4113e10e51f0768520910d5c0ee59d4772c8cf79151061.exe	28
PID 2068 wrote to memory of 1364	2068	18a333f048ee9d4b2d4113e10e51f0768520910d5c0ee59d4772c8cf79151061.exe	28
PID 2068 wrote to memory of 1364	2068	18a333f048ee9d4b2d4113e10e51f0768520910d5c0ee59d4772c8cf79151061.exe	28
PID 2068 wrote to memory of 1364	2068	18a333f048ee9d4b2d4113e10e51f0768520910d5c0ee59d4772c8cf79151061.exe	28
PID 1364 wrote to memory of 2016	1364	cmd.exe	30
PID 1364 wrote to memory of 2016	1364	cmd.exe	30
PID 1364 wrote to memory of 2016	1364	cmd.exe	30
PID 1364 wrote to memory of 2016	1364	cmd.exe	30
PID 1364 wrote to memory of 2032	1364	cmd.exe	31
PID 1364 wrote to memory of 2032	1364	cmd.exe	31
PID 1364 wrote to memory of 2032	1364	cmd.exe	31
PID 1364 wrote to memory of 2032	1364	cmd.exe	31
PID 2032 wrote to memory of 2240	2032	svyorrrcq.exe	32
PID 2032 wrote to memory of 2240	2032	svyorrrcq.exe	32
PID 2032 wrote to memory of 2240	2032	svyorrrcq.exe	32
PID 2032 wrote to memory of 2240	2032	svyorrrcq.exe	32
PID 2032 wrote to memory of 2240	2032	svyorrrcq.exe	32
PID 2032 wrote to memory of 2240	2032	svyorrrcq.exe	32
PID 2032 wrote to memory of 2240	2032	svyorrrcq.exe	32

C:\Users\Admin\AppData\Local\Temp\18a333f048ee9d4b2d4113e10e51f0768520910d5c0ee59d4772c8cf79151061.exe
"C:\Users\Admin\AppData\Local\Temp\18a333f048ee9d4b2d4113e10e51f0768520910d5c0ee59d4772c8cf79151061.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2068
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\svyorrrcq.exe "C:\Users\Admin\AppData\Local\Temp\18a333f048ee9d4b2d4113e10e51f0768520910d5c0ee59d4772c8cf79151061.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1364
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - Runs ping.exe
    PID:2016
- - \??\c:\svyorrrcq.exe
    c:\svyorrrcq.exe "C:\Users\Admin\AppData\Local\Temp\18a333f048ee9d4b2d4113e10e51f0768520910d5c0ee59d4772c8cf79151061.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2032
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\uquuwcs\mwwejc.dll",GetWindowClass c:\svyorrrcq.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:2240

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:\svyorrrcq.exe

Filesize
70KB

MD5
4a604a9aedb130712750c2e6343484dc

SHA1
61451a7a8fd0b974af94b1d126a0bca73a4bf3f7

SHA256
a17e55ac38dc8575b5fb84e3e1bd3bc5d8b70d6f296914af50332db961dd042f

SHA512
a45dcbc10c8bc4b3b1e7360b136bcf5478454e2f4720a0e4b421361a1fd505fed1690bea9a4dcc43d141e30ee8fcc4c67f536abcd52fb7ac33ccd5dcc7e99cb3

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

Filesize
70KB

MD5
4a604a9aedb130712750c2e6343484dc

SHA1
61451a7a8fd0b974af94b1d126a0bca73a4bf3f7

SHA256
a17e55ac38dc8575b5fb84e3e1bd3bc5d8b70d6f296914af50332db961dd042f

SHA512
a45dcbc10c8bc4b3b1e7360b136bcf5478454e2f4720a0e4b421361a1fd505fed1690bea9a4dcc43d141e30ee8fcc4c67f536abcd52fb7ac33ccd5dcc7e99cb3

Download Submit
\??\c:\uquuwcs\mwwejc.dll

Filesize
46KB

MD5
a3fd41430ddcaa55fde840788925406a

SHA1
dbdd87f5c1bbf6a6f44c2e2c4744675d5e4e75c2

SHA256
f57f9e54f4774c2b944fb070ae0c2a02cbb4b7686ab3207544c3ccaff0ff3dd9

SHA512
23109572cfc9a282ea3ec84d93bfe02303d27f365ad2d9f47f6234f91da14c64f80133cc5e49746dfcb65d2454b7e7c13eff59ba4bbc18e09d2fb1c630ba59c9

Download Submit
\uquuwcs\mwwejc.dll

Filesize
46KB

MD5
a3fd41430ddcaa55fde840788925406a

SHA1
dbdd87f5c1bbf6a6f44c2e2c4744675d5e4e75c2

SHA256
f57f9e54f4774c2b944fb070ae0c2a02cbb4b7686ab3207544c3ccaff0ff3dd9

SHA512
23109572cfc9a282ea3ec84d93bfe02303d27f365ad2d9f47f6234f91da14c64f80133cc5e49746dfcb65d2454b7e7c13eff59ba4bbc18e09d2fb1c630ba59c9

Download Submit
\uquuwcs\mwwejc.dll

Filesize
46KB

MD5
a3fd41430ddcaa55fde840788925406a

SHA1
dbdd87f5c1bbf6a6f44c2e2c4744675d5e4e75c2

SHA256
f57f9e54f4774c2b944fb070ae0c2a02cbb4b7686ab3207544c3ccaff0ff3dd9

SHA512
23109572cfc9a282ea3ec84d93bfe02303d27f365ad2d9f47f6234f91da14c64f80133cc5e49746dfcb65d2454b7e7c13eff59ba4bbc18e09d2fb1c630ba59c9

Download Submit
\uquuwcs\mwwejc.dll

Filesize
46KB

MD5
a3fd41430ddcaa55fde840788925406a

SHA1
dbdd87f5c1bbf6a6f44c2e2c4744675d5e4e75c2

SHA256
f57f9e54f4774c2b944fb070ae0c2a02cbb4b7686ab3207544c3ccaff0ff3dd9

SHA512
23109572cfc9a282ea3ec84d93bfe02303d27f365ad2d9f47f6234f91da14c64f80133cc5e49746dfcb65d2454b7e7c13eff59ba4bbc18e09d2fb1c630ba59c9

Download Submit
\uquuwcs\mwwejc.dll

Filesize
46KB

MD5
a3fd41430ddcaa55fde840788925406a

SHA1
dbdd87f5c1bbf6a6f44c2e2c4744675d5e4e75c2

SHA256
f57f9e54f4774c2b944fb070ae0c2a02cbb4b7686ab3207544c3ccaff0ff3dd9

SHA512
23109572cfc9a282ea3ec84d93bfe02303d27f365ad2d9f47f6234f91da14c64f80133cc5e49746dfcb65d2454b7e7c13eff59ba4bbc18e09d2fb1c630ba59c9

Download Submit
memory/1364-4-0x00000000001B0000-0x00000000001CA000-memory.dmp

Filesize
104KB

Download
memory/2032-7-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2068-2-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2068-0-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2240-12-0x0000000010000000-0x000000001002E000-memory.dmp

Filesize
184KB

Download
memory/2240-14-0x0000000010000000-0x000000001002E000-memory.dmp

Filesize
184KB

Download
memory/2240-15-0x0000000010000000-0x000000001002E000-memory.dmp

Filesize
184KB

Download
memory/2240-16-0x0000000010000000-0x000000001002E000-memory.dmp

Filesize
184KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads