trickbot | 394860f08ba108fbf31adeb687c911f381dced87d1fe78607546397cb78cdfb0

General

Target

March.xlsb
Size

156KB
MD5

aee94cb5bce75ff1d2e9bb2ca41b40e7
SHA1

fa7239382fb2a406efde23ab0e9ef58ef649c5d2
SHA256

394860f08ba108fbf31adeb687c911f381dced87d1fe78607546397cb78cdfb0
SHA512

f748cfb700318762bda70bb4847ddfd1dc6c6681d801d52537cf8b7f76292f92110d1f04a571f2bccf8eac608d90aa707aa18af4cdd52c743e47d8f554dba31c

Score

10^/10

trickbot mon102 banker trojan

Malware Config

Extracted

Family

trickbot

Version

100013

Botnet

mon102

C2

103.225.138.94:449

122.2.28.70:449

123.200.26.246:449

131.255.106.152:449

142.112.79.223:449

154.126.176.30:449

180.92.238.186:449

187.20.217.129:449

201.20.118.122:449

202.91.41.138:449

95.210.118.90:449

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	2836	1152	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/2504-11-0x0000000003570000-0x00000000035A9000-memory.dmp	templ_dll
behavioral2/memory/2504-12-0x0000000004E70000-0x0000000004EA7000-memory.dmp	templ_dll
behavioral2/memory/2504-14-0x00000000034F0000-0x0000000003526000-memory.dmp	templ_dll

Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

2504 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

38 ip.anysrc.net

pid	process
2504	rundll32.exe

flow	ioc
38	ip.anysrc.net

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

1152 EXCEL.EXE
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

wermgr.exe

description pid process

Token: SeDebugPrivilege 3828 wermgr.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

1152 EXCEL.EXE
1152 EXCEL.EXE

description	pid	process
Token: SeDebugPrivilege	3828	wermgr.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

EXCEL.EXErundll32.exerundll32.exe

description	pid	process	target process
PID 1152 wrote to memory of 2836	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 2836	1152	EXCEL.EXE	rundll32.exe
PID 2836 wrote to memory of 2504	2836	rundll32.exe	rundll32.exe
PID 2836 wrote to memory of 2504	2836	rundll32.exe	rundll32.exe
PID 2836 wrote to memory of 2504	2836	rundll32.exe	rundll32.exe
PID 2504 wrote to memory of 3928	2504	rundll32.exe	wermgr.exe
PID 2504 wrote to memory of 3928	2504	rundll32.exe	wermgr.exe
PID 2504 wrote to memory of 3828	2504	rundll32.exe	wermgr.exe
PID 2504 wrote to memory of 3828	2504	rundll32.exe	wermgr.exe
PID 2504 wrote to memory of 3828	2504	rundll32.exe	wermgr.exe
PID 2504 wrote to memory of 3828	2504	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\March.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:1152
- C:\Windows\System32\rundll32.exe
  "C:\Windows\System32\rundll32.exe" C:\ProgramData\uveoq\45.dll,DllRegisterServer1
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:2836
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\System32\rundll32.exe" C:\ProgramData\uveoq\45.dll,DllRegisterServer1
    3⤵
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:2504
  - - C:\Windows\system32\wermgr.exe
      C:\Windows\system32\wermgr.exe
      4⤵
      PID:3928
  - - C:\Windows\system32\wermgr.exe
      C:\Windows\system32\wermgr.exe
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:3828

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

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Downloads

C:\ProgramData\uveoq\45.dll

MD5
75378e60ba4f150d6adb5468edef655b

SHA1
51b17236d40ef2c354916d6f758191b3128bf58d

SHA256
ff6554ab27fa28c602add0c4824a651b42f0d9b45e7d0a758ba66e2e650598db

SHA512
c101fc303c3c88a982ac10324941d6b67f5b7880b3c98e4eb5a3aa1717688516e25ed70823cdacc02081ab06cc5890588aab396e4970f4c008699ce0289f1683

Download Submit
\ProgramData\uveoq\45.dll

MD5
75378e60ba4f150d6adb5468edef655b

SHA1
51b17236d40ef2c354916d6f758191b3128bf58d

SHA256
ff6554ab27fa28c602add0c4824a651b42f0d9b45e7d0a758ba66e2e650598db

SHA512
c101fc303c3c88a982ac10324941d6b67f5b7880b3c98e4eb5a3aa1717688516e25ed70823cdacc02081ab06cc5890588aab396e4970f4c008699ce0289f1683

Download Submit
memory/1152-6-0x00007FFB31D10000-0x00007FFB31D20000-memory.dmp

Filesize
64KB

Download
memory/1152-23-0x00007FFB31D10000-0x00007FFB31D20000-memory.dmp

Filesize
64KB

Download
memory/1152-21-0x00007FFB31D10000-0x00007FFB31D20000-memory.dmp

Filesize
64KB

Download
memory/1152-2-0x00007FFB31D10000-0x00007FFB31D20000-memory.dmp

Filesize
64KB

Download
memory/1152-4-0x00007FFB31D10000-0x00007FFB31D20000-memory.dmp

Filesize
64KB

Download
memory/1152-22-0x00007FFB31D10000-0x00007FFB31D20000-memory.dmp

Filesize
64KB

Download
memory/1152-3-0x00007FFB31D10000-0x00007FFB31D20000-memory.dmp

Filesize
64KB

Download
memory/1152-5-0x00007FFB55840000-0x00007FFB55E77000-memory.dmp

Filesize
6.2MB

Download
memory/1152-24-0x00007FFB31D10000-0x00007FFB31D20000-memory.dmp

Filesize
64KB

Download
memory/2504-12-0x0000000004E70000-0x0000000004EA7000-memory.dmp

Filesize
220KB

Download
memory/2504-15-0x0000000005370000-0x00000000053B3000-memory.dmp

Filesize
268KB

Download
memory/2504-16-0x0000000004EB0000-0x0000000004EB1000-memory.dmp

Filesize
4KB

Download
memory/2504-14-0x00000000034F0000-0x0000000003526000-memory.dmp

Filesize
216KB

Download
memory/2504-11-0x0000000003570000-0x00000000035A9000-memory.dmp

Filesize
228KB

Download
memory/2504-9-0x0000000000000000-mapping.dmp

Download
memory/2504-17-0x0000000003551000-0x0000000003553000-memory.dmp

Filesize
8KB

Download
memory/2504-20-0x0000000010000000-0x0000000010037000-memory.dmp

Filesize
220KB

Download
memory/2836-7-0x0000000000000000-mapping.dmp

Download
memory/3828-19-0x000001BC781B0000-0x000001BC781B1000-memory.dmp

Filesize
4KB

Download
memory/3828-18-0x000001BC77FA0000-0x000001BC77FC8000-memory.dmp

Filesize
160KB

Download
memory/3828-13-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads