trickbot | 0426cdbcc2cbd587d32d4324bed89a4a80bca59bd880bdc8b1efc4810d4ed2bc

General

Target

SecuriteInfo.com.Heur.26940.27082.xls
Size

192KB
MD5

3ced3a99f232fabf65e51f8a67ba68d2
SHA1

2e608a4fa4d17efb6763783424282011f3d328c0
SHA256

0426cdbcc2cbd587d32d4324bed89a4a80bca59bd880bdc8b1efc4810d4ed2bc
SHA512

bdf7239078858836a6ee6e68fd3692cfd22a49a3f4d8f28e9e00edf55de1114cfec71641f7b6566b972b2ef7bd5d30c3d0e68758661d4fb9bad0d7f4873af1ab

Score

10^/10

trickbot rob72 banker trojan

Malware Config

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\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4336	4776	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
behavioral2/memory/560-11-0x0000000005240000-0x0000000005279000-memory.dmp	templ_dll
behavioral2/memory/560-12-0x0000000005280000-0x00000000052B7000-memory.dmp	templ_dll
behavioral2/memory/560-13-0x0000000003570000-0x00000000035A6000-memory.dmp	templ_dll

Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

560 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

36 ipecho.net

pid	process
560	rundll32.exe

flow	ioc
36	ipecho.net

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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

4776 EXCEL.EXE
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

wermgr.exe

description pid process

Token: SeDebugPrivilege 804 wermgr.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

4776 EXCEL.EXE
4776 EXCEL.EXE

description	pid	process
Token: SeDebugPrivilege	804	wermgr.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4776	EXCEL.EXE
4776	EXCEL.EXE
4776	EXCEL.EXE
4776	EXCEL.EXE
4776	EXCEL.EXE
4776	EXCEL.EXE
4776	EXCEL.EXE
4776	EXCEL.EXE
4776	EXCEL.EXE
4776	EXCEL.EXE
4776	EXCEL.EXE
4776	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

EXCEL.EXErundll32.exerundll32.exe

description	pid	process	target process
PID 4776 wrote to memory of 4336	4776	EXCEL.EXE	rundll32.exe
PID 4776 wrote to memory of 4336	4776	EXCEL.EXE	rundll32.exe
PID 4336 wrote to memory of 560	4336	rundll32.exe	rundll32.exe
PID 4336 wrote to memory of 560	4336	rundll32.exe	rundll32.exe
PID 4336 wrote to memory of 560	4336	rundll32.exe	rundll32.exe
PID 560 wrote to memory of 912	560	rundll32.exe	cmd.exe
PID 560 wrote to memory of 912	560	rundll32.exe	cmd.exe
PID 560 wrote to memory of 912	560	rundll32.exe	cmd.exe
PID 560 wrote to memory of 804	560	rundll32.exe	wermgr.exe
PID 560 wrote to memory of 804	560	rundll32.exe	wermgr.exe
PID 560 wrote to memory of 804	560	rundll32.exe	wermgr.exe
PID 560 wrote to memory of 804	560	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\SecuriteInfo.com.Heur.26940.27082.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:4776

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Frost.bitte,DllRegisterServer1
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:4336

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Frost.bitte,DllRegisterServer1
3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:560

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe
4⤵
PID:912

C:\Windows\system32\wermgr.exe
C:\Windows\system32\wermgr.exe
4⤵
- Suspicious use of AdjustPrivilegeToken
PID:804

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

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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/560-12-0x0000000005280000-0x00000000052B7000-memory.dmp

Filesize
220KB

Download
memory/560-18-0x0000000004DC1000-0x0000000004DC3000-memory.dmp

Filesize
8KB

Download
memory/560-17-0x0000000004DE0000-0x0000000004DE1000-memory.dmp

Filesize
4KB

Download
memory/560-16-0x00000000052C0000-0x0000000005303000-memory.dmp

Filesize
268KB

Download
memory/560-15-0x0000000010000000-0x0000000010037000-memory.dmp

Filesize
220KB

Download
memory/560-13-0x0000000003570000-0x00000000035A6000-memory.dmp

Filesize
216KB

Download
memory/560-9-0x0000000000000000-mapping.dmp

Download
memory/560-11-0x0000000005240000-0x0000000005279000-memory.dmp

Filesize
228KB

Download
memory/804-14-0x0000000000000000-mapping.dmp

Download
memory/804-20-0x000001BFE9870000-0x000001BFE9871000-memory.dmp

Filesize
4KB

Download
memory/804-19-0x000001BFE9760000-0x000001BFE9788000-memory.dmp

Filesize
160KB

Download
memory/4336-7-0x0000000000000000-mapping.dmp

Download
memory/4776-2-0x00007FFF21F30000-0x00007FFF21F40000-memory.dmp

Filesize
64KB

Download
memory/4776-6-0x00007FFF46220000-0x00007FFF46857000-memory.dmp

Filesize
6.2MB

Download
memory/4776-5-0x00007FFF21F30000-0x00007FFF21F40000-memory.dmp

Filesize
64KB

Download
memory/4776-4-0x00007FFF21F30000-0x00007FFF21F40000-memory.dmp

Filesize
64KB

Download
memory/4776-3-0x00007FFF21F30000-0x00007FFF21F40000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads