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

Language

xlm4.0

Source

URLs

xlm40.dropper

http://195.123.219.21/campo/t3/t3

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 (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	952	1632	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/952-13-0x0000000000260000-0x0000000000299000-memory.dmp	templ_dll
behavioral1/memory/952-14-0x0000000000400000-0x0000000000437000-memory.dmp	templ_dll
behavioral1/memory/952-15-0x00000000001F0000-0x0000000000226000-memory.dmp	templ_dll

Loads dropped DLL 4 IoCs

Processes:

rundll32.exe

pid process

952 rundll32.exe
952 rundll32.exe
952 rundll32.exe
952 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

15 checkip.amazonaws.com
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
952	rundll32.exe
952	rundll32.exe
952	rundll32.exe
952	rundll32.exe

flow	ioc
15	checkip.amazonaws.com

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-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1632 EXCEL.EXE
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

wermgr.exe

description pid process

Token: SeDebugPrivilege 344 wermgr.exe
Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

EXCEL.EXE

pid process

1632 EXCEL.EXE
1632 EXCEL.EXE
1632 EXCEL.EXE
1632 EXCEL.EXE
1632 EXCEL.EXE

pid	process
1632	EXCEL.EXE

description	pid	process
Token: SeDebugPrivilege	344	wermgr.exe

pid	process
1632	EXCEL.EXE
1632	EXCEL.EXE
1632	EXCEL.EXE
1632	EXCEL.EXE
1632	EXCEL.EXE

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

EXCEL.EXErundll32.exe

description	pid	process	target process
PID 1632 wrote to memory of 952	1632	EXCEL.EXE	rundll32.exe
PID 1632 wrote to memory of 952	1632	EXCEL.EXE	rundll32.exe
PID 1632 wrote to memory of 952	1632	EXCEL.EXE	rundll32.exe
PID 1632 wrote to memory of 952	1632	EXCEL.EXE	rundll32.exe
PID 1632 wrote to memory of 952	1632	EXCEL.EXE	rundll32.exe
PID 1632 wrote to memory of 952	1632	EXCEL.EXE	rundll32.exe
PID 1632 wrote to memory of 952	1632	EXCEL.EXE	rundll32.exe
PID 952 wrote to memory of 1036	952	rundll32.exe	wermgr.exe
PID 952 wrote to memory of 1036	952	rundll32.exe	wermgr.exe
PID 952 wrote to memory of 1036	952	rundll32.exe	wermgr.exe
PID 952 wrote to memory of 1036	952	rundll32.exe	wermgr.exe
PID 952 wrote to memory of 344	952	rundll32.exe	wermgr.exe
PID 952 wrote to memory of 344	952	rundll32.exe	wermgr.exe
PID 952 wrote to memory of 344	952	rundll32.exe	wermgr.exe
PID 952 wrote to memory of 344	952	rundll32.exe	wermgr.exe
PID 952 wrote to memory of 344	952	rundll32.exe	wermgr.exe
PID 952 wrote to memory of 344	952	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\Attachment_96895.xlsb
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1632

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:\ProgramData\uoxv\71.dll,DllRegisterServer1
2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:952

C:\Windows\system32\wermgr.exe
C:\Windows\system32\wermgr.exe
3⤵
- Suspicious use of AdjustPrivilegeToken
PID:344

C:\Windows\system32\wermgr.exe
C:\Windows\system32\wermgr.exe
3⤵
PID:1036

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\uoxv\71.dll
MD5
c0380891e177e4aec28f295dc3942611

SHA1
53e8b1944a4b894e655c11b0f093e42bd0bc2305

SHA256
503d372606aebe0d445e9a84158630fc554ce792f72a79bc1316da5e3b53256a

SHA512
b96ad186cb8649deadc4c9f9802cb7b10627319787c5f6e2968e7e7e2b62116f2f2eee746ebb015fa2578f09ed7ee4f568535a5b2645c777a8807929e96e1523

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
MD5
b35b0fe912b141de450e6e1b13be1158

SHA1
80a6361099364463d871ec7b228da6c5bee59235

SHA256
b9829706653ff89bc34f6f8ba0adf03c902378074db6dda0243849855ca08818

SHA512
c9c3cdd2394b02ccc170d6f0130d32d6f5c21fd997da5351c8d4c9d12c2dc6010882133951bbbc7995f30a06f4dabd836514a671084654406433518adf75f8f1

Download Submit
\ProgramData\uoxv\71.dll
MD5
c0380891e177e4aec28f295dc3942611

SHA1
53e8b1944a4b894e655c11b0f093e42bd0bc2305

SHA256
503d372606aebe0d445e9a84158630fc554ce792f72a79bc1316da5e3b53256a

SHA512
b96ad186cb8649deadc4c9f9802cb7b10627319787c5f6e2968e7e7e2b62116f2f2eee746ebb015fa2578f09ed7ee4f568535a5b2645c777a8807929e96e1523

Download Submit
\ProgramData\uoxv\71.dll
MD5
c0380891e177e4aec28f295dc3942611

SHA1
53e8b1944a4b894e655c11b0f093e42bd0bc2305

SHA256
503d372606aebe0d445e9a84158630fc554ce792f72a79bc1316da5e3b53256a

SHA512
b96ad186cb8649deadc4c9f9802cb7b10627319787c5f6e2968e7e7e2b62116f2f2eee746ebb015fa2578f09ed7ee4f568535a5b2645c777a8807929e96e1523

Download Submit
\ProgramData\uoxv\71.dll
MD5
c0380891e177e4aec28f295dc3942611

SHA1
53e8b1944a4b894e655c11b0f093e42bd0bc2305

SHA256
503d372606aebe0d445e9a84158630fc554ce792f72a79bc1316da5e3b53256a

SHA512
b96ad186cb8649deadc4c9f9802cb7b10627319787c5f6e2968e7e7e2b62116f2f2eee746ebb015fa2578f09ed7ee4f568535a5b2645c777a8807929e96e1523

Download Submit
\ProgramData\uoxv\71.dll
MD5
c0380891e177e4aec28f295dc3942611

SHA1
53e8b1944a4b894e655c11b0f093e42bd0bc2305

SHA256
503d372606aebe0d445e9a84158630fc554ce792f72a79bc1316da5e3b53256a

SHA512
b96ad186cb8649deadc4c9f9802cb7b10627319787c5f6e2968e7e7e2b62116f2f2eee746ebb015fa2578f09ed7ee4f568535a5b2645c777a8807929e96e1523

Download Submit
memory/344-17-0x0000000000000000-mapping.dmp

Download
memory/344-20-0x00000000000E0000-0x0000000000108000-memory.dmp

Filesize
160KB

Download
memory/344-21-0x0000000000130000-0x0000000000131000-memory.dmp

Filesize
4KB

Download
memory/952-15-0x00000000001F0000-0x0000000000226000-memory.dmp

Filesize
216KB

Download
memory/952-13-0x0000000000260000-0x0000000000299000-memory.dmp

Filesize
228KB

Download
memory/952-14-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/952-7-0x0000000076341000-0x0000000076343000-memory.dmp

Filesize
8KB

Download
memory/952-16-0x0000000002440000-0x0000000002483000-memory.dmp

Filesize
268KB

Download
memory/952-6-0x0000000000000000-mapping.dmp

Download
memory/952-19-0x0000000000191000-0x0000000000193000-memory.dmp

Filesize
8KB

Download
memory/952-18-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1580-5-0x000007FEF7B10000-0x000007FEF7D8A000-memory.dmp

Filesize
2.5MB

Download
memory/1632-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1632-2-0x000000002F5F1000-0x000000002F5F4000-memory.dmp

Filesize
12KB

Download
memory/1632-3-0x00000000719C1000-0x00000000719C3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads