trickbot | ab1d6eacd13c7ce70852c85f8da60605b30722d728928ee6d65647750061c6f2

General

Target

6.xlsb
Size

190KB
MD5

10360f4838885037c303c5d1e54a40c1
SHA1

e22bc05b3ff0891e18f414f0dc468078bf24720d
SHA256

ab1d6eacd13c7ce70852c85f8da60605b30722d728928ee6d65647750061c6f2
SHA512

8b91f5a5114cc46d034d62dd07006e22a7ced0e0e54df5354243070259111182e851c6a0f7d0ef1225c8eecd12a789e314b709a28c37091f4d2080c2a16a51a0

Score

10^/10

trickbot mon80 banker trojan

Malware Config

Extracted

Family

trickbot

Version

100012

Botnet

mon80

C2

41.77.134.250:449

45.155.173.242:443

192.162.238.186:449

142.112.79.223:449

122.2.28.70:449

154.126.176.30:449

45.230.244.20:443

182.253.107.34:443

200.52.147.93:443

123.200.26.246:449

131.255.106.152:449

177.85.133.118:449

103.225.138.94:449

142.202.191.164:443

95.210.118.90:449

36.94.62.207:443

201.20.118.122:449

180.92.238.186:449

103.130.6.244:449

202.91.41.138:449

Attributes

autorun
Name:pwgrab

ecc_pubkey.base64

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

rundll32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2524	4800	rundll32.exe	EXCEL.EXE

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

Templ.dll packer 3 IoCs

Detects Templ.dll packer which usually loads Trickbot.

Processes:

resource	yara_rule
behavioral2/memory/2572-11-0x0000000004300000-0x0000000004339000-memory.dmp	templ_dll
behavioral2/memory/2572-12-0x0000000010000000-0x0000000010037000-memory.dmp	templ_dll
behavioral2/memory/2572-13-0x0000000002610000-0x0000000002646000-memory.dmp	templ_dll

Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

2572 rundll32.exe
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

42 checkip.amazonaws.com

pid	process
2572	rundll32.exe

flow	ioc
42	checkip.amazonaws.com

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4800 EXCEL.EXE
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

wermgr.exe

description pid process

Token: SeDebugPrivilege 3624 wermgr.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

4800 EXCEL.EXE
4800 EXCEL.EXE

description	pid	process
Token: SeDebugPrivilege	3624	wermgr.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4800	EXCEL.EXE
4800	EXCEL.EXE
4800	EXCEL.EXE
4800	EXCEL.EXE
4800	EXCEL.EXE
4800	EXCEL.EXE
4800	EXCEL.EXE
4800	EXCEL.EXE
4800	EXCEL.EXE
4800	EXCEL.EXE
4800	EXCEL.EXE
4800	EXCEL.EXE

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

EXCEL.EXErundll32.exerundll32.exe

description	pid	process	target process
PID 4800 wrote to memory of 2524	4800	EXCEL.EXE	rundll32.exe
PID 4800 wrote to memory of 2524	4800	EXCEL.EXE	rundll32.exe
PID 2524 wrote to memory of 2572	2524	rundll32.exe	rundll32.exe
PID 2524 wrote to memory of 2572	2524	rundll32.exe	rundll32.exe
PID 2524 wrote to memory of 2572	2524	rundll32.exe	rundll32.exe
PID 2572 wrote to memory of 4492	2572	rundll32.exe	wermgr.exe
PID 2572 wrote to memory of 4492	2572	rundll32.exe	wermgr.exe
PID 2572 wrote to memory of 3624	2572	rundll32.exe	wermgr.exe
PID 2572 wrote to memory of 3624	2572	rundll32.exe	wermgr.exe
PID 2572 wrote to memory of 3624	2572	rundll32.exe	wermgr.exe
PID 2572 wrote to memory of 3624	2572	rundll32.exe	wermgr.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\6.xlsb"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4800
- C:\Windows\System32\rundll32.exe
  "C:\Windows\System32\rundll32.exe" C:\ProgramData\ahap\7730.dll,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:2524
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\System32\rundll32.exe" C:\ProgramData\ahap\7730.dll,DllRegisterServer
    3⤵
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:2572
  - - C:\Windows\system32\wermgr.exe
      C:\Windows\system32\wermgr.exe
      4⤵
      PID:4492
  - - C:\Windows\system32\wermgr.exe
      C:\Windows\system32\wermgr.exe
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:3624

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\ahap\7730.dll

MD5
3cee87ebc7068a187eb004eb95f98bcd

SHA1
80621efcaaf5ed4c1fce32add111aa532f6b4efe

SHA256
73549c17c4437c811e33b8dc51694b8d4f0f78f0ddf4019b3158b904a2d2b94d

SHA512
853ceb8eba3786766bb3ec46469727ed6d22b7929d73d52dbe18c9c85b79c08cd1d24977d3c0334ccf19d0d6ccd4d95217db1069e199350ae79fdff8c2d4c17a

Download Submit
\ProgramData\ahap\7730.dll

MD5
3cee87ebc7068a187eb004eb95f98bcd

SHA1
80621efcaaf5ed4c1fce32add111aa532f6b4efe

SHA256
73549c17c4437c811e33b8dc51694b8d4f0f78f0ddf4019b3158b904a2d2b94d

SHA512
853ceb8eba3786766bb3ec46469727ed6d22b7929d73d52dbe18c9c85b79c08cd1d24977d3c0334ccf19d0d6ccd4d95217db1069e199350ae79fdff8c2d4c17a

Download Submit
memory/2524-7-0x0000000000000000-mapping.dmp

Download
memory/2572-12-0x0000000010000000-0x0000000010037000-memory.dmp

Filesize
220KB

Download
memory/2572-17-0x0000000002511000-0x0000000002513000-memory.dmp

Filesize
8KB

Download
memory/2572-15-0x0000000004340000-0x0000000004381000-memory.dmp

Filesize
260KB

Download
memory/2572-16-0x0000000002650000-0x0000000002651000-memory.dmp

Filesize
4KB

Download
memory/2572-13-0x0000000002610000-0x0000000002646000-memory.dmp

Filesize
216KB

Download
memory/2572-9-0x0000000000000000-mapping.dmp

Download
memory/2572-11-0x0000000004300000-0x0000000004339000-memory.dmp

Filesize
228KB

Download
memory/3624-14-0x0000000000000000-mapping.dmp

Download
memory/3624-18-0x0000017C2AA30000-0x0000017C2AA57000-memory.dmp

Filesize
156KB

Download
memory/3624-19-0x0000017C2AA70000-0x0000017C2AA71000-memory.dmp

Filesize
4KB

Download
memory/4800-6-0x00007FFA3D590000-0x00007FFA3D5A0000-memory.dmp

Filesize
64KB

Download
memory/4800-2-0x00007FFA3D590000-0x00007FFA3D5A0000-memory.dmp

Filesize
64KB

Download
memory/4800-5-0x00007FFA613D0000-0x00007FFA61A07000-memory.dmp

Filesize
6.2MB

Download
memory/4800-4-0x00007FFA3D590000-0x00007FFA3D5A0000-memory.dmp

Filesize
64KB

Download
memory/4800-3-0x00007FFA3D590000-0x00007FFA3D5A0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads