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

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\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2420	644	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
behavioral2/memory/2284-183-0x0000000001180000-0x00000000011B6000-memory.dmp	templ_dll

Downloads MZ/PE file
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

2284 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

34 wtfismyip.com

pid	process
2284	rundll32.exe

flow	ioc
34	wtfismyip.com

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 opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

644 EXCEL.EXE
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

wermgr.exe

description pid process

Token: SeDebugPrivilege 2188 wermgr.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

644 EXCEL.EXE
644 EXCEL.EXE

description	pid	process
Token: SeDebugPrivilege	2188	wermgr.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE
644	EXCEL.EXE

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

EXCEL.EXErundll32.exerundll32.exe

description	pid	process	target process
PID 644 wrote to memory of 2420	644	EXCEL.EXE	rundll32.exe
PID 644 wrote to memory of 2420	644	EXCEL.EXE	rundll32.exe
PID 2420 wrote to memory of 2284	2420	rundll32.exe	rundll32.exe
PID 2420 wrote to memory of 2284	2420	rundll32.exe	rundll32.exe
PID 2420 wrote to memory of 2284	2420	rundll32.exe	rundll32.exe
PID 2284 wrote to memory of 2188	2284	rundll32.exe	wermgr.exe
PID 2284 wrote to memory of 2188	2284	rundll32.exe	wermgr.exe
PID 2284 wrote to memory of 2188	2284	rundll32.exe	wermgr.exe
PID 2284 wrote to memory of 2188	2284	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\Invoice 301.xls"
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:644

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\hsdksksk.iem,StartW
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:2420

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\hsdksksk.iem,StartW
3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2284

C:\Windows\system32\wermgr.exe
C:\Windows\system32\wermgr.exe
4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2188

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

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/644-117-0x00007FFB7C310000-0x00007FFB7C320000-memory.dmp

Filesize
64KB

Download
memory/644-118-0x00007FFB7C310000-0x00007FFB7C320000-memory.dmp

Filesize
64KB

Download
memory/644-122-0x00007FFB7C310000-0x00007FFB7C320000-memory.dmp

Filesize
64KB

Download
memory/644-121-0x00007FFB9C9A0000-0x00007FFB9DA8E000-memory.dmp

Filesize
16.9MB

Download
memory/644-123-0x00007FFB9AAA0000-0x00007FFB9C995000-memory.dmp

Filesize
31.0MB

Download
memory/644-116-0x00007FFB7C310000-0x00007FFB7C320000-memory.dmp

Filesize
64KB

Download
memory/644-115-0x00007FFB7C310000-0x00007FFB7C320000-memory.dmp

Filesize
64KB

Download
memory/644-114-0x00007FF7D0730000-0x00007FF7D3CE6000-memory.dmp

Filesize
53.7MB

Download
memory/2188-184-0x0000000000000000-mapping.dmp

Download
memory/2188-188-0x0000021EC4280000-0x0000021EC42A8000-memory.dmp

Filesize
160KB

Download
memory/2188-189-0x0000021EC4390000-0x0000021EC4391000-memory.dmp

Filesize
4KB

Download
memory/2284-183-0x0000000001180000-0x00000000011B6000-memory.dmp

Filesize
216KB

Download
memory/2284-185-0x00000000047B0000-0x00000000047F3000-memory.dmp

Filesize
268KB

Download
memory/2284-186-0x0000000001240000-0x0000000001241000-memory.dmp

Filesize
4KB

Download
memory/2284-187-0x0000000001091000-0x0000000001093000-memory.dmp

Filesize
8KB

Download
memory/2284-181-0x0000000000000000-mapping.dmp

Download
memory/2420-179-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads