trickbot | cd82389b29fa5bf0b638c07322d368bbe1d20e3a41017367ee6308ff1d2cdb54

General

Target

cd82389b29fa5bf0b638c07322d368bbe1d20e3a41017367ee6308ff1d2cdb54.xls
Size

141KB
MD5

d565aff6f0f8712bd3a7529e19a8a419
SHA1

ff573e49876b159f8821f9c8abfa6c344a5ed275
SHA256

cd82389b29fa5bf0b638c07322d368bbe1d20e3a41017367ee6308ff1d2cdb54
SHA512

4af4bd83b514788f0d98fa6f18da332f53bddbac683774f10fbf7174e9a02e14bf91d01605b68b87a2b1606d5f67cb850693bd3a8391dab6e285fe08c708041e

Score

10^/10

trickbot rob16 banker trojan

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://bearcatpumps.com.cn/css/tolkio.php

Extracted

Family

trickbot

Version

2000026

Botnet

rob16

C2

154.79.252.132:449

179.191.108.58:449

200.6.169.124:443

103.76.20.226:443

80.78.77.116:449

80.78.75.246:443

45.234.248.66:449

187.190.116.59:443

185.234.72.84:443

36.94.202.131:443

103.91.244.102:449

168.232.188.88:449

103.73.101.98:449

173.81.4.147:449

202.142.151.190:449

118.67.216.238:449

108.170.20.72:443

85.159.214.61:443

36.92.93.5:449

79.122.166.236:449

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 (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	552	1740	rundll32.exe	EXCEL.EXE

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

Templ.dll packer 1 IoCs

Detects Templ.dll packer which usually loads Trickbot.

Processes:

resource	yara_rule
behavioral1/memory/552-10-0x0000000000230000-0x0000000000267000-memory.dmp	templ_dll

Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

552 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

10 wtfismyip.com
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
552	rundll32.exe

flow	ioc
10	wtfismyip.com

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
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1740 EXCEL.EXE
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

wermgr.exe

description pid process

Token: SeDebugPrivilege 1352 wermgr.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1740 EXCEL.EXE
1740 EXCEL.EXE
1740 EXCEL.EXE

pid	process
1740	EXCEL.EXE

description	pid	process
Token: SeDebugPrivilege	1352	wermgr.exe

pid	process
1740	EXCEL.EXE
1740	EXCEL.EXE
1740	EXCEL.EXE

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

EXCEL.EXErundll32.exe

description	pid	process	target process
PID 1740 wrote to memory of 552	1740	EXCEL.EXE	rundll32.exe
PID 1740 wrote to memory of 552	1740	EXCEL.EXE	rundll32.exe
PID 1740 wrote to memory of 552	1740	EXCEL.EXE	rundll32.exe
PID 1740 wrote to memory of 552	1740	EXCEL.EXE	rundll32.exe
PID 1740 wrote to memory of 552	1740	EXCEL.EXE	rundll32.exe
PID 1740 wrote to memory of 552	1740	EXCEL.EXE	rundll32.exe
PID 1740 wrote to memory of 552	1740	EXCEL.EXE	rundll32.exe
PID 552 wrote to memory of 1352	552	rundll32.exe	wermgr.exe
PID 552 wrote to memory of 1352	552	rundll32.exe	wermgr.exe
PID 552 wrote to memory of 1352	552	rundll32.exe	wermgr.exe
PID 552 wrote to memory of 1352	552	rundll32.exe	wermgr.exe
PID 552 wrote to memory of 1352	552	rundll32.exe	wermgr.exe
PID 552 wrote to memory of 1352	552	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\cd82389b29fa5bf0b638c07322d368bbe1d20e3a41017367ee6308ff1d2cdb54.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1740

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\TDCS.OKDFR,DllRegisterServer1
2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:552

C:\Windows\system32\wermgr.exe
C:\Windows\system32\wermgr.exe
3⤵
- Suspicious use of AdjustPrivilegeToken
PID:1352

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\TDCS.OKDFR
MD5
884dab96c679194fc5140322d5ce9e9d

SHA1
e7277a259a6f05bb74c14324f97b9513c8d4d9e5

SHA256
5b6661b43c17ad12172c4327aa4b79be8bcf1c421cb08d6bff19f7e26282e9d8

SHA512
b3c18425d6c6712f7e7c31909af128628aa95af55f1de7632399276b630e8be9448fb10d5c29e77ac83522bf130e34cd1a3a7ad5875876a60e5a3069e7340b30

Download Submit
\Users\Admin\TDCS.OKDFR
MD5
884dab96c679194fc5140322d5ce9e9d

SHA1
e7277a259a6f05bb74c14324f97b9513c8d4d9e5

SHA256
5b6661b43c17ad12172c4327aa4b79be8bcf1c421cb08d6bff19f7e26282e9d8

SHA512
b3c18425d6c6712f7e7c31909af128628aa95af55f1de7632399276b630e8be9448fb10d5c29e77ac83522bf130e34cd1a3a7ad5875876a60e5a3069e7340b30

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memory/552-10-0x0000000000230000-0x0000000000267000-memory.dmp

Filesize
220KB

Download
memory/552-14-0x0000000010001000-0x0000000010003000-memory.dmp

Filesize
8KB

Download
memory/552-13-0x0000000000120000-0x0000000000121000-memory.dmp

Filesize
4KB

Download
memory/552-12-0x00000000008A0000-0x00000000008E1000-memory.dmp

Filesize
260KB

Download
memory/552-6-0x0000000000000000-mapping.dmp

Download
memory/552-7-0x00000000766F1000-0x00000000766F3000-memory.dmp

Filesize
8KB

Download
memory/1144-5-0x000007FEF63D0000-0x000007FEF664A000-memory.dmp

Filesize
2.5MB

Download
memory/1352-11-0x0000000000000000-mapping.dmp

Download
memory/1352-15-0x0000000000060000-0x0000000000088000-memory.dmp

Filesize
160KB

Download
memory/1352-16-0x0000000000120000-0x0000000000121000-memory.dmp

Filesize
4KB

Download
memory/1740-2-0x000000002F341000-0x000000002F344000-memory.dmp

Filesize
12KB

Download
memory/1740-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1740-3-0x00000000715E1000-0x00000000715E3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads