trickbot | eb84e38dcd0c4a9001ff77f310fff1f35f7a1f266d427e936e147f2503d7fd4e

General

Target

Attachment_96895.xlsb
Size

197KB
MD5

97ddf648ac6d7f338d20f0508bef20d2
SHA1

c51e33389745e6209d5856dcf7045cbab2a6ab08
SHA256

eb84e38dcd0c4a9001ff77f310fff1f35f7a1f266d427e936e147f2503d7fd4e
SHA512

658b293d254ba3acee1396b44ae04b257d692fe9c5100646a806f41527453f3537b28c02438dd62f4fe1bb8cc1e2b01f54c5abb59423769d0723ee6934147d44

Score

10^/10

trickbot mon95 banker trojan

Malware Config

Extracted

Family

trickbot

Version

100013

Botnet

mon95

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	2072	496	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/4008-11-0x0000000004940000-0x0000000004979000-memory.dmp	templ_dll
behavioral2/memory/4008-12-0x0000000004980000-0x00000000049B7000-memory.dmp	templ_dll
behavioral2/memory/4008-14-0x0000000004900000-0x0000000004936000-memory.dmp	templ_dll

Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

4008 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

41 checkip.amazonaws.com

pid	process
4008	rundll32.exe

flow	ioc
41	checkip.amazonaws.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

496 EXCEL.EXE
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

wermgr.exe

description pid process

Token: SeDebugPrivilege 2128 wermgr.exe

description	pid	process
Token: SeDebugPrivilege	2128	wermgr.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

EXCEL.EXErundll32.exerundll32.exe

description	pid	process	target process
PID 496 wrote to memory of 2072	496	EXCEL.EXE	rundll32.exe
PID 496 wrote to memory of 2072	496	EXCEL.EXE	rundll32.exe
PID 2072 wrote to memory of 4008	2072	rundll32.exe	rundll32.exe
PID 2072 wrote to memory of 4008	2072	rundll32.exe	rundll32.exe
PID 2072 wrote to memory of 4008	2072	rundll32.exe	rundll32.exe
PID 4008 wrote to memory of 2188	4008	rundll32.exe	wermgr.exe
PID 4008 wrote to memory of 2188	4008	rundll32.exe	wermgr.exe
PID 4008 wrote to memory of 2128	4008	rundll32.exe	wermgr.exe
PID 4008 wrote to memory of 2128	4008	rundll32.exe	wermgr.exe
PID 4008 wrote to memory of 2128	4008	rundll32.exe	wermgr.exe
PID 4008 wrote to memory of 2128	4008	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\Attachment_96895.xlsb"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:496

C:\Windows\System32\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:\ProgramData\uoxv\55.dll,DllRegisterServer1
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:2072

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:\ProgramData\uoxv\55.dll,DllRegisterServer1
3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4008

C:\Windows\system32\wermgr.exe
C:\Windows\system32\wermgr.exe
4⤵
PID:2188

C:\Windows\system32\wermgr.exe
C:\Windows\system32\wermgr.exe
4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2128

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

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Downloads

C:\ProgramData\uoxv\55.dll
MD5
c0380891e177e4aec28f295dc3942611

SHA1
53e8b1944a4b894e655c11b0f093e42bd0bc2305

SHA256
503d372606aebe0d445e9a84158630fc554ce792f72a79bc1316da5e3b53256a

SHA512
b96ad186cb8649deadc4c9f9802cb7b10627319787c5f6e2968e7e7e2b62116f2f2eee746ebb015fa2578f09ed7ee4f568535a5b2645c777a8807929e96e1523

Download Submit
\ProgramData\uoxv\55.dll
MD5
c0380891e177e4aec28f295dc3942611

SHA1
53e8b1944a4b894e655c11b0f093e42bd0bc2305

SHA256
503d372606aebe0d445e9a84158630fc554ce792f72a79bc1316da5e3b53256a

SHA512
b96ad186cb8649deadc4c9f9802cb7b10627319787c5f6e2968e7e7e2b62116f2f2eee746ebb015fa2578f09ed7ee4f568535a5b2645c777a8807929e96e1523

Download Submit
memory/496-6-0x00007FF9E6980000-0x00007FF9E6FB7000-memory.dmp

Filesize
6.2MB

Download
memory/496-2-0x00007FF9C2D80000-0x00007FF9C2D90000-memory.dmp

Filesize
64KB

Download
memory/496-4-0x00007FF9C2D80000-0x00007FF9C2D90000-memory.dmp

Filesize
64KB

Download
memory/496-3-0x00007FF9C2D80000-0x00007FF9C2D90000-memory.dmp

Filesize
64KB

Download
memory/496-5-0x00007FF9C2D80000-0x00007FF9C2D90000-memory.dmp

Filesize
64KB

Download
memory/2072-7-0x0000000000000000-mapping.dmp

Download
memory/2128-13-0x0000000000000000-mapping.dmp

Download
memory/2128-16-0x00000193AF3D0000-0x00000193AF3D1000-memory.dmp

Filesize
4KB

Download
memory/2128-15-0x00000193AF2C0000-0x00000193AF2E8000-memory.dmp

Filesize
160KB

Download
memory/4008-11-0x0000000004940000-0x0000000004979000-memory.dmp

Filesize
228KB

Download
memory/4008-14-0x0000000004900000-0x0000000004936000-memory.dmp

Filesize
216KB

Download
memory/4008-12-0x0000000004980000-0x00000000049B7000-memory.dmp

Filesize
220KB

Download
memory/4008-9-0x0000000000000000-mapping.dmp

Download
memory/4008-18-0x0000000004E10000-0x0000000004E11000-memory.dmp

Filesize
4KB

Download
memory/4008-17-0x00000000049C0000-0x0000000004A03000-memory.dmp

Filesize
268KB

Download
memory/4008-19-0x0000000004DF1000-0x0000000004DF3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads