8d851febf33307b4b35fe57611cabd1a852c2b3c33990a17c6808cad84e969b2

General

Target

msimg32.dll
Size

31.4MB
MD5

89251cc68b1e4f944c70bf906911ecae
SHA1

98b65fccf300e4a85575f1a62e7b3bc54ef0b910
SHA256

4a80e0e5d4822b96fb9bd71c0f82bafad1661828af2d7004d4429ffa3b9ef6d2
SHA512

41be121404640198bb1bb21a13e294b658d7f08a8f70747b9ca115c229a288aba61fa58d776c845e46e0bb5f3be40a6e7cf5bd491a0688df2d5cb86fb53176aa
SSDEEP

393216:Ue3INPM39bBqsr7+0Xx93by0WWZ2z8BCBkYplJIdqaw:UeYNM39bBFrVx93bdZ2k8Odqaw

Score

10^/10

Malware Config

Signatures

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 1904 created 2784	1904	rundll32.exe	49

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-1-5-21-4248760313-3670024077-2384670640-1000\Software\Microsoft\Windows\CurrentVersion\Run\FortinetDLP = "rundll32.exe C:\\Users\\Admin\\Documents\\CrashRpt231603.dll,EntryPoint"	reg.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2864	1904	WerFault.exe	79

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1904	rundll32.exe
1904	rundll32.exe
1904	rundll32.exe
1904	rundll32.exe
4932	svchost.exe
4932	svchost.exe
4932	svchost.exe
4932	svchost.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4808 wrote to memory of 3000	4808	rundll32.exe	78
PID 4808 wrote to memory of 3000	4808	rundll32.exe	78
PID 4808 wrote to memory of 3000	4808	rundll32.exe	78
PID 3000 wrote to memory of 1904	3000	rundll32.exe	79
PID 3000 wrote to memory of 1904	3000	rundll32.exe	79
PID 3000 wrote to memory of 1904	3000	rundll32.exe	79
PID 3000 wrote to memory of 1904	3000	rundll32.exe	79
PID 3000 wrote to memory of 1904	3000	rundll32.exe	79
PID 3000 wrote to memory of 1828	3000	rundll32.exe	80
PID 3000 wrote to memory of 1828	3000	rundll32.exe	80
PID 3000 wrote to memory of 1828	3000	rundll32.exe	80
PID 1828 wrote to memory of 2428	1828	cmd.exe	82
PID 1828 wrote to memory of 2428	1828	cmd.exe	82
PID 1828 wrote to memory of 2428	1828	cmd.exe	82
PID 1904 wrote to memory of 4932	1904	rundll32.exe	83
PID 1904 wrote to memory of 4932	1904	rundll32.exe	83
PID 1904 wrote to memory of 4932	1904	rundll32.exe	83
PID 1904 wrote to memory of 4932	1904	rundll32.exe	83
PID 1904 wrote to memory of 4932	1904	rundll32.exe	83

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:2784
- C:\Windows\SysWOW64\svchost.exe
  "C:\Windows\System32\svchost.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:4932

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\msimg32.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4808
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\msimg32.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3000
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\SysWOW64\rundll32.exe"
    3⤵
    - Suspicious use of NtCreateUserProcessOtherParentProcess
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1904
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1904 -s 420
      4⤵
      Program crash
      PID:2864
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /C reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "FortinetDLP" /t REG_SZ /d "rundll32.exe C:\Users\Admin\Documents\CrashRpt231603.dll",EntryPoint /f & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1828
  - - C:\Windows\SysWOW64\reg.exe
      reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "FortinetDLP" /t REG_SZ /d "rundll32.exe C:\Users\Admin\Documents\CrashRpt231603.dll",EntryPoint /f
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:2428

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1904 -ip 1904
1⤵
PID:1408

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

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1904-10-0x0000000002430000-0x0000000002830000-memory.dmp

Filesize
4.0MB

Download
memory/1904-12-0x00007FFFE22C0000-0x00007FFFE24C9000-memory.dmp

Filesize
2.0MB

Download
memory/1904-2-0x00000000005A0000-0x0000000000621000-memory.dmp

Filesize
516KB

Download
memory/1904-9-0x0000000002430000-0x0000000002830000-memory.dmp

Filesize
4.0MB

Download
memory/1904-5-0x00000000005A0000-0x0000000000621000-memory.dmp

Filesize
516KB

Download
memory/1904-3-0x00000000005A0000-0x0000000000621000-memory.dmp

Filesize
516KB

Download
memory/1904-23-0x0000000002430000-0x0000000002830000-memory.dmp

Filesize
4.0MB

Download
memory/1904-11-0x0000000002430000-0x0000000002830000-memory.dmp

Filesize
4.0MB

Download
memory/1904-13-0x0000000002430000-0x0000000002830000-memory.dmp

Filesize
4.0MB

Download
memory/1904-15-0x00007FFFE22C1000-0x00007FFFE23EA000-memory.dmp

Filesize
1.2MB

Download
memory/1904-4-0x00000000005A0000-0x0000000000621000-memory.dmp

Filesize
516KB

Download
memory/1904-16-0x0000000075650000-0x00000000758A2000-memory.dmp

Filesize
2.3MB

Download
memory/3000-1-0x0000000011E9D000-0x0000000011EE1000-memory.dmp

Filesize
272KB

Download
memory/3000-0-0x0000000010000000-0x0000000012915000-memory.dmp

Filesize
41.1MB

Download
memory/3000-6-0x0000000011E23000-0x0000000011E3C000-memory.dmp

Filesize
100KB

Download
memory/4932-17-0x0000000001060000-0x000000000106A000-memory.dmp

Filesize
40KB

Download
memory/4932-19-0x00000000016E0000-0x0000000001AE0000-memory.dmp

Filesize
4.0MB

Download
memory/4932-20-0x00007FFFE22C0000-0x00007FFFE24C9000-memory.dmp

Filesize
2.0MB

Download
memory/4932-22-0x0000000075650000-0x00000000758A2000-memory.dmp

Filesize
2.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads