trickbot | 587ab4f5569b3d5064b93f4d8e12ff8ab7399a03a0c3304c8865db2b187b2272

General

Target

Invoice 717.xlsb
Size

97KB
MD5

aae44c3735592848cee672f1b4806026
SHA1

52cd5e0535d6562193a84005cf0f20ed1da7f54e
SHA256

587ab4f5569b3d5064b93f4d8e12ff8ab7399a03a0c3304c8865db2b187b2272
SHA512

7f9d3aa31499086fd52c9f351d2f216f061268e2ca4dd9a4722bce8245cebc8122018a7ec221fb4e10400e04c32a6e6731e0c4e9e620a742aa6d2ce44a431e7a

Score

10^/10

trickbot net16 banker trojan

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://mastercarebath.com/wp-netmon.dll

Extracted

Family

trickbot

Version

2000029

Botnet

net16

C2

103.66.72.217:443

117.252.68.211:443

103.124.173.35:443

115.73.211.230:443

117.54.250.246:443

131.0.112.122:443

102.176.221.78:443

181.176.161.143:443

154.79.251.172:443

103.111.199.76:443

103.54.41.193:443

154.79.244.182:443

154.79.245.158:443

139.255.116.42:443

178.254.161.250:443

178.134.47.166:443

158.181.179.229:443

103.90.197.33:443

109.207.165.40:443

178.72.192.20:443

Attributes

autorun
Name:pwgrabb
Name:pwgrabc

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 (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	640	308	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
behavioral1/memory/640-67-0x0000000000330000-0x0000000000369000-memory.dmp	templ_dll
behavioral1/memory/640-70-0x0000000000720000-0x0000000000757000-memory.dmp	templ_dll
behavioral1/memory/640-72-0x0000000000190000-0x00000000001C6000-memory.dmp	templ_dll

Downloads MZ/PE file
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

640 rundll32.exe
Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

EXCEL.EXE

description ioc process

Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE

pid	process
640	rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

308 EXCEL.EXE
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

wermgr.exe

description pid process

Token: SeDebugPrivilege 632 wermgr.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

308 EXCEL.EXE
308 EXCEL.EXE
308 EXCEL.EXE

pid	process
308	EXCEL.EXE

description	pid	process
Token: SeDebugPrivilege	632	wermgr.exe

pid	process
308	EXCEL.EXE
308	EXCEL.EXE
308	EXCEL.EXE

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

EXCEL.EXErundll32.exe

description	pid	process	target process
PID 308 wrote to memory of 640	308	EXCEL.EXE	rundll32.exe
PID 308 wrote to memory of 640	308	EXCEL.EXE	rundll32.exe
PID 308 wrote to memory of 640	308	EXCEL.EXE	rundll32.exe
PID 308 wrote to memory of 640	308	EXCEL.EXE	rundll32.exe
PID 308 wrote to memory of 640	308	EXCEL.EXE	rundll32.exe
PID 308 wrote to memory of 640	308	EXCEL.EXE	rundll32.exe
PID 308 wrote to memory of 640	308	EXCEL.EXE	rundll32.exe
PID 640 wrote to memory of 632	640	rundll32.exe	wermgr.exe
PID 640 wrote to memory of 632	640	rundll32.exe	wermgr.exe
PID 640 wrote to memory of 632	640	rundll32.exe	wermgr.exe
PID 640 wrote to memory of 632	640	rundll32.exe	wermgr.exe
PID 640 wrote to memory of 632	640	rundll32.exe	wermgr.exe
PID 640 wrote to memory of 632	640	rundll32.exe	wermgr.exe

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde "C:\Users\Admin\AppData\Local\Temp\Invoice 717.xlsb"
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:308

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\ndfbsjskdg.idn,StartW
2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:640

C:\Windows\system32\wermgr.exe
C:\Windows\system32\wermgr.exe
3⤵
- Suspicious use of AdjustPrivilegeToken
PID:632

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\ndfbsjskdg.idn
MD5
0248aa78d8a4d231273d6589edb0a423

SHA1
276bdc086442cd91c5aed2db9edc95e2ea53e172

SHA256
a8f0fe4419ee163d9230feca6a00693c5f61948159fe869ead51ec3398b7038d

SHA512
ec571c0883101537b1da7b02bc14eb1b2cee26937aa58995c868fb893e4ba18b445664647f8118a862ee2a1d11b54cacfad013d21523661116e3ae598acef309

Download Submit
\Users\Admin\ndfbsjskdg.idn
MD5
0248aa78d8a4d231273d6589edb0a423

SHA1
276bdc086442cd91c5aed2db9edc95e2ea53e172

SHA256
a8f0fe4419ee163d9230feca6a00693c5f61948159fe869ead51ec3398b7038d

SHA512
ec571c0883101537b1da7b02bc14eb1b2cee26937aa58995c868fb893e4ba18b445664647f8118a862ee2a1d11b54cacfad013d21523661116e3ae598acef309

Download Submit
memory/308-61-0x0000000071CC1000-0x0000000071CC3000-memory.dmp

Filesize
8KB

Download
memory/308-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/308-79-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/308-60-0x000000002F5D1000-0x000000002F5D4000-memory.dmp

Filesize
12KB

Download
memory/632-73-0x0000000000000000-mapping.dmp

Download
memory/632-78-0x00000000000A0000-0x00000000000A1000-memory.dmp

Filesize
4KB

Download
memory/632-77-0x0000000000060000-0x0000000000088000-memory.dmp

Filesize
160KB

Download
memory/640-64-0x0000000075A31000-0x0000000075A33000-memory.dmp

Filesize
8KB

Download
memory/640-72-0x0000000000190000-0x00000000001C6000-memory.dmp

Filesize
216KB

Download
memory/640-74-0x0000000000B90000-0x0000000000BD3000-memory.dmp

Filesize
268KB

Download
memory/640-70-0x0000000000720000-0x0000000000757000-memory.dmp

Filesize
220KB

Download
memory/640-76-0x00000000001D1000-0x00000000001D3000-memory.dmp

Filesize
8KB

Download
memory/640-75-0x00000000002C0000-0x00000000002D1000-memory.dmp

Filesize
68KB

Download
memory/640-67-0x0000000000330000-0x0000000000369000-memory.dmp

Filesize
228KB

Download
memory/640-63-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads