trickbot | cd82389b29fa5bf0b638c07322d368bbe1d20e3a41017367ee6308ff1d2cdb54

General

Target

Attach_1344833645_1944784007.xls
Size

141KB
MD5

d565aff6f0f8712bd3a7529e19a8a419
SHA1

ff573e49876b159f8821f9c8abfa6c344a5ed275
SHA256

cd82389b29fa5bf0b638c07322d368bbe1d20e3a41017367ee6308ff1d2cdb54
SHA512

4af4bd83b514788f0d98fa6f18da332f53bddbac683774f10fbf7174e9a02e14bf91d01605b68b87a2b1606d5f67cb850693bd3a8391dab6e285fe08c708041e

Score

10^/10

trickbot rob16 banker trojan

Malware Config

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\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1292	1152	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/2712-12-0x0000000001030000-0x0000000001067000-memory.dmp	templ_dll

Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

2712 rundll32.exe
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

34 ident.me
35 ident.me

pid	process
2712	rundll32.exe

flow	ioc
34	ident.me
35	ident.me

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

1152 EXCEL.EXE
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

wermgr.exe

description pid process

Token: SeDebugPrivilege 3912 wermgr.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

1152 EXCEL.EXE
1152 EXCEL.EXE

description	pid	process
Token: SeDebugPrivilege	3912	wermgr.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

EXCEL.EXErundll32.exerundll32.exe

description	pid	process	target process
PID 1152 wrote to memory of 1292	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1292	1152	EXCEL.EXE	rundll32.exe
PID 1292 wrote to memory of 2712	1292	rundll32.exe	rundll32.exe
PID 1292 wrote to memory of 2712	1292	rundll32.exe	rundll32.exe
PID 1292 wrote to memory of 2712	1292	rundll32.exe	rundll32.exe
PID 2712 wrote to memory of 3912	2712	rundll32.exe	wermgr.exe
PID 2712 wrote to memory of 3912	2712	rundll32.exe	wermgr.exe
PID 2712 wrote to memory of 3912	2712	rundll32.exe	wermgr.exe
PID 2712 wrote to memory of 3912	2712	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\Attach_1344833645_1944784007.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:1152

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\TDCS.OKDFR,DllRegisterServer1
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:1292

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\TDCS.OKDFR,DllRegisterServer1
3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2712

C:\Windows\system32\wermgr.exe
C:\Windows\system32\wermgr.exe
4⤵
- Suspicious use of AdjustPrivilegeToken
PID:3912

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\TDCS.OKDFR
MD5
884dab96c679194fc5140322d5ce9e9d

SHA1
e7277a259a6f05bb74c14324f97b9513c8d4d9e5

SHA256
5b6661b43c17ad12172c4327aa4b79be8bcf1c421cb08d6bff19f7e26282e9d8

SHA512
b3c18425d6c6712f7e7c31909af128628aa95af55f1de7632399276b630e8be9448fb10d5c29e77ac83522bf130e34cd1a3a7ad5875876a60e5a3069e7340b30

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\Users\Admin\TDCS.OKDFR
MD5
884dab96c679194fc5140322d5ce9e9d

SHA1
e7277a259a6f05bb74c14324f97b9513c8d4d9e5

SHA256
5b6661b43c17ad12172c4327aa4b79be8bcf1c421cb08d6bff19f7e26282e9d8

SHA512
b3c18425d6c6712f7e7c31909af128628aa95af55f1de7632399276b630e8be9448fb10d5c29e77ac83522bf130e34cd1a3a7ad5875876a60e5a3069e7340b30

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memory/1152-3-0x00007FFB31D10000-0x00007FFB31D20000-memory.dmp

Filesize
64KB

Download
memory/1152-4-0x00007FFB31D10000-0x00007FFB31D20000-memory.dmp

Filesize
64KB

Download
memory/1152-5-0x00007FFB55F10000-0x00007FFB56547000-memory.dmp

Filesize
6.2MB

Download
memory/1152-6-0x00007FFB31D10000-0x00007FFB31D20000-memory.dmp

Filesize
64KB

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memory/1152-7-0x00007FFB2E6E0000-0x00007FFB2E6F0000-memory.dmp

Filesize
64KB

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memory/1152-2-0x00007FFB31D10000-0x00007FFB31D20000-memory.dmp

Filesize
64KB

Download
memory/1292-8-0x0000000000000000-mapping.dmp

Download
memory/2712-10-0x0000000000000000-mapping.dmp

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memory/2712-12-0x0000000001030000-0x0000000001067000-memory.dmp

Filesize
220KB

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memory/2712-14-0x0000000001150000-0x0000000001191000-memory.dmp

Filesize
260KB

Download
memory/2712-16-0x0000000010001000-0x0000000010003000-memory.dmp

Filesize
8KB

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memory/2712-15-0x0000000000B20000-0x0000000000B21000-memory.dmp

Filesize
4KB

Download
memory/3912-13-0x0000000000000000-mapping.dmp

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memory/3912-17-0x00000218A28E0000-0x00000218A2908000-memory.dmp

Filesize
160KB

Download
memory/3912-18-0x00000218A29F0000-0x00000218A29F1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads