trickbot | bf0e96518ed963661f2390fbca0abd06fa85df03c38f1ba6e493032055eee0e0

General

Target

935b07a6f2a00b8ca625ef04a73896951908d7be53a376a42f735834ce9e5051.doc
Size

661KB
MD5

db2fd34b9fc9655079166148b56a96c5
SHA1

2016bf3c60df680e3ee919bdd028aac12a564ad8
SHA256

935b07a6f2a00b8ca625ef04a73896951908d7be53a376a42f735834ce9e5051
SHA512

e8c9d01a1bc437cb1d5cc1be1914debdc9f10fcd817eb955694942b8a785d1a6d86ca0795d6e5c89880a1113881ca857927ba0785c42a60c34c79a5f4df6f799
SSDEEP

6144:O2odBqalWx9HKA2zvr4v6Bvr7x+LqRidIc5eiosO+E2mjyDxcBne3OOUj3uZgFty:EpKqTDr4sx+G3c5eH+LRDx4jeZn

Score

10^/10

trickbot banker discovery packer trojan

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE is not expected to spawn this process	2852	2128	explorer.exe	29

Trickbot
Developed in 2016, TrickBot is one of the more recent banking Trojans.
trojan banker trickbot
Trickbot family
trickbot

Templ.dll packer 2 IoCs

Detects Templ.dll packer which usually loads Trickbot.

packer

resource	yara_rule
behavioral1/memory/1032-41-0x0000000000510000-0x0000000000546000-memory.dmp	templ_dll
behavioral1/memory/1032-37-0x00000000003B0000-0x00000000003E7000-memory.dmp	templ_dll

Loads dropped DLL 4 IoCs

pid	Process
1032	rundll32.exe
1032	rundll32.exe
1032	rundll32.exe
1032	rundll32.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	WINWORD.EXE

System Location Discovery: System Language Discovery 1 TTPs 3 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	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Office loads VBA resources, possible macro or embedded object present

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2128	WINWORD.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2544	wermgr.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2128	WINWORD.EXE
2128	WINWORD.EXE

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 2852	2128	WINWORD.EXE	30
PID 2128 wrote to memory of 2852	2128	WINWORD.EXE	30
PID 2128 wrote to memory of 2852	2128	WINWORD.EXE	30
PID 2128 wrote to memory of 2852	2128	WINWORD.EXE	30
PID 2836 wrote to memory of 2668	2836	explorer.exe	33
PID 2836 wrote to memory of 2668	2836	explorer.exe	33
PID 2836 wrote to memory of 2668	2836	explorer.exe	33
PID 2668 wrote to memory of 2224	2668	WScript.exe	34
PID 2668 wrote to memory of 2224	2668	WScript.exe	34
PID 2668 wrote to memory of 2224	2668	WScript.exe	34
PID 2224 wrote to memory of 1032	2224	rundll32.exe	35
PID 2224 wrote to memory of 1032	2224	rundll32.exe	35
PID 2224 wrote to memory of 1032	2224	rundll32.exe	35
PID 2224 wrote to memory of 1032	2224	rundll32.exe	35
PID 2224 wrote to memory of 1032	2224	rundll32.exe	35
PID 2224 wrote to memory of 1032	2224	rundll32.exe	35
PID 2224 wrote to memory of 1032	2224	rundll32.exe	35
PID 1032 wrote to memory of 2544	1032	rundll32.exe	36
PID 1032 wrote to memory of 2544	1032	rundll32.exe	36
PID 1032 wrote to memory of 2544	1032	rundll32.exe	36
PID 1032 wrote to memory of 2544	1032	rundll32.exe	36
PID 1032 wrote to memory of 2544	1032	rundll32.exe	36
PID 1032 wrote to memory of 2544	1032	rundll32.exe	36
PID 2128 wrote to memory of 2584	2128	WINWORD.EXE	37
PID 2128 wrote to memory of 2584	2128	WINWORD.EXE	37
PID 2128 wrote to memory of 2584	2128	WINWORD.EXE	37
PID 2128 wrote to memory of 2584	2128	WINWORD.EXE	37

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\935b07a6f2a00b8ca625ef04a73896951908d7be53a376a42f735834ce9e5051.doc"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2128
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe C:\Required\DOMDocument.vbs
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:2852
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:2584

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Suspicious use of WriteProcessMemory
PID:2836
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Required\DOMDocument.vbs"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2668
- - C:\Windows\System32\rundll32.exe
    rundll32 c:\Required\occurs\PFSDOFKGAM.dll,DllRegisterServer
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2224
  - - C:\Windows\SysWOW64\rundll32.exe
      rundll32 c:\Required\occurs\PFSDOFKGAM.dll,DllRegisterServer
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:1032
    - - C:\Windows\system32\wermgr.exe
        
        C:\Windows\system32\wermgr.exe
        5⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:2544

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Required\DOMDocument.vbs

Filesize
461KB

MD5
260fb1215f12dc252f18fcd7f742e641

SHA1
f7359f7384e1c0ea0d742904062d3d03bfbca65a

SHA256
085c48a7dccd84eb72924d23124d54c22bc7d681fbcb9d2956c11f803e56f310

SHA512
8a2021a43c95bda9ccaf0d47b839da7df4d0873f235cc5c81e3029eae1a4037c34242a1acc5b1f04b017ade2d69fca403f8aca40910f59a4fd24928c2581e67b

Download Submit
\??\c:\Required\occurs\PFSDOFKGAM.dll

Filesize
308KB

MD5
9c7297f808358284407c2243f7087aa5

SHA1
5f355103c0eed80063232b534d7a0a55e66724be

SHA256
f6de646af9af051954ae507227567377b2198ed50fd7cc90fe4ead0318d7c62a

SHA512
3d8ab6f36e5408895ba1fcd403117a6d5bcd602a5e54358a8291c61fac4cc0651656cfe95dd3d59b9425f8f6380fab889e3de409cc251aa943d38b46a865e5d9

Download Submit
memory/1032-37-0x00000000003B0000-0x00000000003E7000-memory.dmp

Filesize
220KB

Download
memory/1032-41-0x0000000000510000-0x0000000000546000-memory.dmp

Filesize
216KB

Download
memory/2128-13-0x00000000007D0000-0x00000000008D0000-memory.dmp

Filesize
1024KB

Download
memory/2128-11-0x00000000007D0000-0x00000000008D0000-memory.dmp

Filesize
1024KB

Download
memory/2128-0-0x000000002FEA1000-0x000000002FEA2000-memory.dmp

Filesize
4KB

Download
memory/2128-27-0x00000000007D0000-0x00000000008D0000-memory.dmp

Filesize
1024KB

Download
memory/2128-26-0x00000000007D0000-0x00000000008D0000-memory.dmp

Filesize
1024KB

Download
memory/2128-16-0x00000000007D0000-0x00000000008D0000-memory.dmp

Filesize
1024KB

Download
memory/2128-15-0x00000000007D0000-0x00000000008D0000-memory.dmp

Filesize
1024KB

Download
memory/2128-14-0x00000000007D0000-0x00000000008D0000-memory.dmp

Filesize
1024KB

Download
memory/2128-12-0x00000000007D0000-0x00000000008D0000-memory.dmp

Filesize
1024KB

Download
memory/2128-5-0x00000000007D0000-0x00000000008D0000-memory.dmp

Filesize
1024KB

Download
memory/2128-9-0x00000000007D0000-0x00000000008D0000-memory.dmp

Filesize
1024KB

Download
memory/2128-8-0x00000000007D0000-0x00000000008D0000-memory.dmp

Filesize
1024KB

Download
memory/2128-7-0x00000000007D0000-0x00000000008D0000-memory.dmp

Filesize
1024KB

Download
memory/2128-6-0x00000000007D0000-0x00000000008D0000-memory.dmp

Filesize
1024KB

Download
memory/2128-4-0x00000000007D0000-0x00000000008D0000-memory.dmp

Filesize
1024KB

Download
memory/2128-2-0x00000000739DD000-0x00000000739E8000-memory.dmp

Filesize
44KB

Download
memory/2128-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2128-44-0x00000000739DD000-0x00000000739E8000-memory.dmp

Filesize
44KB

Download
memory/2128-45-0x00000000007D0000-0x00000000008D0000-memory.dmp

Filesize
1024KB

Download
memory/2544-46-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download

Analysis

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