de918964f4a6d01ab8b4e8121579627317c5148822c5e9c9c5c00243d22522d3

General

Target

de918964f4a6d01ab8b4e8121579627317c5148822c5e9c9c5c00243d22522d3.exe
Size

71KB
MD5

204a36f1c7d6c8a4e11d309ed7bb0605
SHA1

79ad288c59c3f0760c2e2ec331ab000c297c31ee
SHA256

de918964f4a6d01ab8b4e8121579627317c5148822c5e9c9c5c00243d22522d3
SHA512

5ebc7c5a286901c6de0ec53cb5db4a5af2b6e846035a44b7c914d59c122307e6bae640a1173fa8346b900065327cbd4fa2389cfbe43ce29c4738a76cc39d6759
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
15	2408	rundll32.exe
16	2408	rundll32.exe
17	2408	rundll32.exe
18	2408	rundll32.exe
19	2408	rundll32.exe
23	2408	rundll32.exe
27	2408	rundll32.exe
28	2408	rundll32.exe

ASPack v2.12-2.42 2 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral2/files/0x0008000000022dbc-3.dat	aspack_v212_v242
behavioral2/files/0x0008000000022dbc-5.dat	aspack_v212_v242

Deletes itself 1 IoCs

pid	Process
2984	yxost.exe

Executes dropped EXE 1 IoCs

pid	Process
2984	yxost.exe

Loads dropped DLL 1 IoCs

pid	Process
2408	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-1-5-21-1114462139-3090196418-29517368-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\yjlra\\qqugc.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)	\??\u:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\s:	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
656	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2408	rundll32.exe
2408	rundll32.exe
2408	rundll32.exe
2408	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2408	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4620	de918964f4a6d01ab8b4e8121579627317c5148822c5e9c9c5c00243d22522d3.exe
2984	yxost.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4620 wrote to memory of 388	4620	de918964f4a6d01ab8b4e8121579627317c5148822c5e9c9c5c00243d22522d3.exe	82
PID 4620 wrote to memory of 388	4620	de918964f4a6d01ab8b4e8121579627317c5148822c5e9c9c5c00243d22522d3.exe	82
PID 4620 wrote to memory of 388	4620	de918964f4a6d01ab8b4e8121579627317c5148822c5e9c9c5c00243d22522d3.exe	82
PID 388 wrote to memory of 656	388	cmd.exe	84
PID 388 wrote to memory of 656	388	cmd.exe	84
PID 388 wrote to memory of 656	388	cmd.exe	84
PID 388 wrote to memory of 2984	388	cmd.exe	85
PID 388 wrote to memory of 2984	388	cmd.exe	85
PID 388 wrote to memory of 2984	388	cmd.exe	85
PID 2984 wrote to memory of 2408	2984	yxost.exe	86
PID 2984 wrote to memory of 2408	2984	yxost.exe	86
PID 2984 wrote to memory of 2408	2984	yxost.exe	86

C:\Users\Admin\AppData\Local\Temp\de918964f4a6d01ab8b4e8121579627317c5148822c5e9c9c5c00243d22522d3.exe
"C:\Users\Admin\AppData\Local\Temp\de918964f4a6d01ab8b4e8121579627317c5148822c5e9c9c5c00243d22522d3.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4620
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\yxost.exe "C:\Users\Admin\AppData\Local\Temp\de918964f4a6d01ab8b4e8121579627317c5148822c5e9c9c5c00243d22522d3.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:388
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - Runs ping.exe
    PID:656
- - \??\c:\yxost.exe
    c:\yxost.exe "C:\Users\Admin\AppData\Local\Temp\de918964f4a6d01ab8b4e8121579627317c5148822c5e9c9c5c00243d22522d3.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2984
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\yjlra\qqugc.dll",GetWindowClass c:\yxost.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:2408

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:\yjlra\qqugc.dll

Filesize
46KB

MD5
a3fd41430ddcaa55fde840788925406a

SHA1
dbdd87f5c1bbf6a6f44c2e2c4744675d5e4e75c2

SHA256
f57f9e54f4774c2b944fb070ae0c2a02cbb4b7686ab3207544c3ccaff0ff3dd9

SHA512
23109572cfc9a282ea3ec84d93bfe02303d27f365ad2d9f47f6234f91da14c64f80133cc5e49746dfcb65d2454b7e7c13eff59ba4bbc18e09d2fb1c630ba59c9

Download Submit
C:\yxost.exe

Filesize
71KB

MD5
ab682e64a7e4a96a6a53b9bb2922d089

SHA1
eaaa31bbaa4838fdbc635d298f87e3e9adbf061e

SHA256
c1db202720290edbe20b27655ac4dcd991fbe677b11752f6f5c5d2571be8ab2f

SHA512
365c7af2bac658e9b07e68191dc417e10c1b342d588cc697af981adbdff52bdcb413815fea762c4e5e5e9698494e9673c92c57f8b93f2b594274dc3322f5df45

Download Submit
\??\c:\yjlra\qqugc.dll

Filesize
46KB

MD5
a3fd41430ddcaa55fde840788925406a

SHA1
dbdd87f5c1bbf6a6f44c2e2c4744675d5e4e75c2

SHA256
f57f9e54f4774c2b944fb070ae0c2a02cbb4b7686ab3207544c3ccaff0ff3dd9

SHA512
23109572cfc9a282ea3ec84d93bfe02303d27f365ad2d9f47f6234f91da14c64f80133cc5e49746dfcb65d2454b7e7c13eff59ba4bbc18e09d2fb1c630ba59c9

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

Filesize
71KB

MD5
ab682e64a7e4a96a6a53b9bb2922d089

SHA1
eaaa31bbaa4838fdbc635d298f87e3e9adbf061e

SHA256
c1db202720290edbe20b27655ac4dcd991fbe677b11752f6f5c5d2571be8ab2f

SHA512
365c7af2bac658e9b07e68191dc417e10c1b342d588cc697af981adbdff52bdcb413815fea762c4e5e5e9698494e9673c92c57f8b93f2b594274dc3322f5df45

Download Submit
memory/2408-10-0x0000000010000000-0x000000001002E000-memory.dmp

Filesize
184KB

Download
memory/2408-11-0x0000000010000000-0x000000001002E000-memory.dmp

Filesize
184KB

Download
memory/2408-12-0x0000000010000000-0x000000001002E000-memory.dmp

Filesize
184KB

Download
memory/2984-7-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/4620-0-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/4620-2-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads