trickbot | 21b240c5af05eb2bed5378cb48035d82219aa0708434cb49ad60b0632e37b7bf

General

Target

SecuriteInfo.com.Heur.4977.7619.xls
Size

192KB
MD5

2e5c3f6e341b2b06802a5dd491279007
SHA1

1889f5c88e10c7b1d9159f3dca7b39a153c38086
SHA256

21b240c5af05eb2bed5378cb48035d82219aa0708434cb49ad60b0632e37b7bf
SHA512

e7ee8b05266d88a6a08ca7a2fefd9e2da396e7fa6e24efa477836a05d6bcb5cdbc5a344bd27b33229cba78eb90eee371a6648ce17d7e30e35d9da46b2546b7af

Score

10^/10

trickbot rob72 banker trojan

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://gogorv.net/parseopml/intel.php

Extracted

Family

trickbot

Version

100013

Botnet

rob72

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 (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	748	1924	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/748-10-0x0000000000260000-0x0000000000299000-memory.dmp	templ_dll
behavioral1/memory/748-11-0x00000000002A0000-0x00000000002D7000-memory.dmp	templ_dll
behavioral1/memory/748-12-0x0000000000190000-0x00000000001C6000-memory.dmp	templ_dll

Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

748 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

11 ipecho.net
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
748	rundll32.exe

flow	ioc
11	ipecho.net

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 (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\E&xport to Microsoft Excel	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
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
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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1924 EXCEL.EXE
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

wermgr.exe

description pid process

Token: SeDebugPrivilege 844 wermgr.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1924 EXCEL.EXE
1924 EXCEL.EXE
1924 EXCEL.EXE

pid	process
1924	EXCEL.EXE

description	pid	process
Token: SeDebugPrivilege	844	wermgr.exe

pid	process
1924	EXCEL.EXE
1924	EXCEL.EXE
1924	EXCEL.EXE

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

EXCEL.EXErundll32.exe

description	pid	process	target process
PID 1924 wrote to memory of 748	1924	EXCEL.EXE	rundll32.exe
PID 1924 wrote to memory of 748	1924	EXCEL.EXE	rundll32.exe
PID 1924 wrote to memory of 748	1924	EXCEL.EXE	rundll32.exe
PID 1924 wrote to memory of 748	1924	EXCEL.EXE	rundll32.exe
PID 1924 wrote to memory of 748	1924	EXCEL.EXE	rundll32.exe
PID 1924 wrote to memory of 748	1924	EXCEL.EXE	rundll32.exe
PID 1924 wrote to memory of 748	1924	EXCEL.EXE	rundll32.exe
PID 748 wrote to memory of 736	748	rundll32.exe	cmd.exe
PID 748 wrote to memory of 736	748	rundll32.exe	cmd.exe
PID 748 wrote to memory of 736	748	rundll32.exe	cmd.exe
PID 748 wrote to memory of 736	748	rundll32.exe	cmd.exe
PID 748 wrote to memory of 844	748	rundll32.exe	wermgr.exe
PID 748 wrote to memory of 844	748	rundll32.exe	wermgr.exe
PID 748 wrote to memory of 844	748	rundll32.exe	wermgr.exe
PID 748 wrote to memory of 844	748	rundll32.exe	wermgr.exe
PID 748 wrote to memory of 844	748	rundll32.exe	wermgr.exe
PID 748 wrote to memory of 844	748	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\SecuriteInfo.com.Heur.4977.7619.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1924

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Frost.bitte,DllRegisterServer1
2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:748

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe
3⤵
PID:736

C:\Windows\system32\wermgr.exe
C:\Windows\system32\wermgr.exe
3⤵
- Suspicious use of AdjustPrivilegeToken
PID:844

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

Replay Monitor

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Downloads

C:\Users\Admin\Frost.bitte
MD5
5af074c9bec5f91119e5deac1964207a

SHA1
c2ea2dbcf5393dbc02fb5a8f8040b80aee8d546d

SHA256
68eb43b8e87657e66f8b25400926f55498bfde185252ee24eb068928d698e90d

SHA512
dbfdb8145992efe00f9f8d1a82da9113ec722a6e5a135b652c087400cb75a05a7323314ec26f82d3b0483b65213e00f4309d25770c272b2db419dedb0f062089

Download Submit
\Users\Admin\Frost.bitte
MD5
5af074c9bec5f91119e5deac1964207a

SHA1
c2ea2dbcf5393dbc02fb5a8f8040b80aee8d546d

SHA256
68eb43b8e87657e66f8b25400926f55498bfde185252ee24eb068928d698e90d

SHA512
dbfdb8145992efe00f9f8d1a82da9113ec722a6e5a135b652c087400cb75a05a7323314ec26f82d3b0483b65213e00f4309d25770c272b2db419dedb0f062089

Download Submit
memory/748-10-0x0000000000260000-0x0000000000299000-memory.dmp

Filesize
228KB

Download
memory/748-14-0x0000000010000000-0x0000000010037000-memory.dmp

Filesize
220KB

Download
memory/748-6-0x0000000000000000-mapping.dmp

Download
memory/748-7-0x0000000075AE1000-0x0000000075AE3000-memory.dmp

Filesize
8KB

Download
memory/748-15-0x0000000000430000-0x0000000000473000-memory.dmp

Filesize
268KB

Download
memory/748-16-0x0000000000210000-0x0000000000211000-memory.dmp

Filesize
4KB

Download
memory/748-17-0x00000000001F1000-0x00000000001F3000-memory.dmp

Filesize
8KB

Download
memory/748-11-0x00000000002A0000-0x00000000002D7000-memory.dmp

Filesize
220KB

Download
memory/748-12-0x0000000000190000-0x00000000001C6000-memory.dmp

Filesize
216KB

Download
memory/844-13-0x0000000000000000-mapping.dmp

Download
memory/844-18-0x00000000000E0000-0x0000000000108000-memory.dmp

Filesize
160KB

Download
memory/844-19-0x0000000000520000-0x0000000000521000-memory.dmp

Filesize
4KB

Download
memory/1760-5-0x000007FEF79D0000-0x000007FEF7C4A000-memory.dmp

Filesize
2.5MB

Download
memory/1924-2-0x000000002F4F1000-0x000000002F4F4000-memory.dmp

Filesize
12KB

Download
memory/1924-3-0x0000000071821000-0x0000000071823000-memory.dmp

Filesize
8KB

Download
memory/1924-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads