trickbot | ecaba5d26b33586004c7de1821495e231a7c357a222715e9df199d969e2e9c58

General

Target

Invoice 301.xls
Size

277KB
MD5

59c9f3469b577cd8c4846cdf4d5e6695
SHA1

4c7d119d29cbd08d0824c8794adf98b3d9151d2f
SHA256

ecaba5d26b33586004c7de1821495e231a7c357a222715e9df199d969e2e9c58
SHA512

349970a7f904b567982449a8f628d5e8881872c64893739581cc8b2d476ba47cf9187b4626a167adfa05520997122fe3c60e58eb444dd65c69efce41e93eebad

Score

10^/10

trickbot net15 banker trojan

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://koneckotechnology.com/netmons.dll

Extracted

Family

trickbot

Version

2000029

Botnet

net15

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	1840	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/1840-67-0x00000000007D0000-0x0000000000809000-memory.dmp	templ_dll
behavioral1/memory/1840-70-0x0000000000930000-0x0000000000967000-memory.dmp	templ_dll
behavioral1/memory/1840-72-0x0000000000790000-0x00000000007C6000-memory.dmp	templ_dll

Downloads MZ/PE file
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

1840 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
1840	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
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar	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	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 (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
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
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 (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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

308 EXCEL.EXE
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

EXCEL.EXE

pid process

308 EXCEL.EXE
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

wermgr.exe

description pid process

Token: SeDebugPrivilege 336 wermgr.exe
Suspicious use of SetWindowsHookEx 9 IoCs

Processes:

EXCEL.EXE

pid process

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

pid	process
308	EXCEL.EXE

pid	process
308	EXCEL.EXE

description	pid	process
Token: SeDebugPrivilege	336	wermgr.exe

pid	process
308	EXCEL.EXE
308	EXCEL.EXE
308	EXCEL.EXE
308	EXCEL.EXE
308	EXCEL.EXE
308	EXCEL.EXE
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 1840	308	EXCEL.EXE	rundll32.exe
PID 308 wrote to memory of 1840	308	EXCEL.EXE	rundll32.exe
PID 308 wrote to memory of 1840	308	EXCEL.EXE	rundll32.exe
PID 308 wrote to memory of 1840	308	EXCEL.EXE	rundll32.exe
PID 308 wrote to memory of 1840	308	EXCEL.EXE	rundll32.exe
PID 308 wrote to memory of 1840	308	EXCEL.EXE	rundll32.exe
PID 308 wrote to memory of 1840	308	EXCEL.EXE	rundll32.exe
PID 1840 wrote to memory of 336	1840	rundll32.exe	wermgr.exe
PID 1840 wrote to memory of 336	1840	rundll32.exe	wermgr.exe
PID 1840 wrote to memory of 336	1840	rundll32.exe	wermgr.exe
PID 1840 wrote to memory of 336	1840	rundll32.exe	wermgr.exe
PID 1840 wrote to memory of 336	1840	rundll32.exe	wermgr.exe
PID 1840 wrote to memory of 336	1840	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 301.xls"
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:308

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\hsdksksk.iem,StartW
2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1840

C:\Windows\system32\wermgr.exe
C:\Windows\system32\wermgr.exe
3⤵
- Suspicious use of AdjustPrivilegeToken
PID:336

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\hsdksksk.iem
MD5
3bb9fe6b7e6b4d9c3a3c83de6aacd952

SHA1
57c343ae5e95fe702b759737522e85fe9e97fe5e

SHA256
697dea4b154178e8de096c66167b539aa4465155d294b11765f1a1886eb7c56d

SHA512
1e98417c6c48e0bf405ae5feda4193c91a3b385f387f33d79fba3dc6f7aa7571444885e6628b7ca6075887bfbec3bd17e0782c11a1c45a7d4b1a139849ca4df0

Download Submit
\Users\Admin\hsdksksk.iem
MD5
3bb9fe6b7e6b4d9c3a3c83de6aacd952

SHA1
57c343ae5e95fe702b759737522e85fe9e97fe5e

SHA256
697dea4b154178e8de096c66167b539aa4465155d294b11765f1a1886eb7c56d

SHA512
1e98417c6c48e0bf405ae5feda4193c91a3b385f387f33d79fba3dc6f7aa7571444885e6628b7ca6075887bfbec3bd17e0782c11a1c45a7d4b1a139849ca4df0

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

Filesize
8KB

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

Filesize
64KB

Download
memory/308-60-0x000000002FC21000-0x000000002FC24000-memory.dmp

Filesize
12KB

Download
memory/336-74-0x0000000000000000-mapping.dmp

Download
memory/336-78-0x00000000000A0000-0x00000000000A1000-memory.dmp

Filesize
4KB

Download
memory/336-77-0x0000000000060000-0x0000000000088000-memory.dmp

Filesize
160KB

Download
memory/1840-64-0x0000000075A31000-0x0000000075A33000-memory.dmp

Filesize
8KB

Download
memory/1840-72-0x0000000000790000-0x00000000007C6000-memory.dmp

Filesize
216KB

Download
memory/1840-73-0x00000000009C0000-0x0000000000A03000-memory.dmp

Filesize
268KB

Download
memory/1840-70-0x0000000000930000-0x0000000000967000-memory.dmp

Filesize
220KB

Download
memory/1840-67-0x00000000007D0000-0x0000000000809000-memory.dmp

Filesize
228KB

Download
memory/1840-63-0x0000000000000000-mapping.dmp

Download
memory/1840-76-0x0000000000251000-0x0000000000253000-memory.dmp

Filesize
8KB

Download
memory/1840-75-0x00000000002A0000-0x00000000002B1000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads