trickbot | a312bea6a6445ae94dd24a17279f86ba6bc2148ebe471fbe122c99a939c698a4

General

Target

inv-1493703164-725307606.xls
Size

192KB
MD5

0b2764b61bb52fcec1b44653bde9d050
SHA1

cce7efebaa8d0a3b818e9afc0a5cc2c537574aa6
SHA256

d8f85a2b411d50a6337b7cfa4604541e8d5df93dc2f35be4a31689d8310ae4c6
SHA512

3042c4b31da5663e60c15dc1d20a48ef883c3de4393db37b85243b194c3a66fda6d510ac0fbf469dcd7b448e89617450276ed04d760a2f47bfa287e66fcbdc9b

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	4400	4768	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/3324-11-0x00000000044F0000-0x0000000004529000-memory.dmp	templ_dll
behavioral2/memory/3324-12-0x0000000004530000-0x0000000004567000-memory.dmp	templ_dll
behavioral2/memory/3324-14-0x0000000003FC0000-0x0000000003FF6000-memory.dmp	templ_dll

Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

3324 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

48 ip.anysrc.net

pid	process
3324	rundll32.exe

flow	ioc
48	ip.anysrc.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 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

4768 EXCEL.EXE
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

wermgr.exe

description pid process

Token: SeDebugPrivilege 832 wermgr.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

4768 EXCEL.EXE
4768 EXCEL.EXE

description	pid	process
Token: SeDebugPrivilege	832	wermgr.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4768	EXCEL.EXE
4768	EXCEL.EXE
4768	EXCEL.EXE
4768	EXCEL.EXE
4768	EXCEL.EXE
4768	EXCEL.EXE
4768	EXCEL.EXE
4768	EXCEL.EXE
4768	EXCEL.EXE
4768	EXCEL.EXE
4768	EXCEL.EXE
4768	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

EXCEL.EXErundll32.exerundll32.exe

description	pid	process	target process
PID 4768 wrote to memory of 4400	4768	EXCEL.EXE	rundll32.exe
PID 4768 wrote to memory of 4400	4768	EXCEL.EXE	rundll32.exe
PID 4400 wrote to memory of 3324	4400	rundll32.exe	rundll32.exe
PID 4400 wrote to memory of 3324	4400	rundll32.exe	rundll32.exe
PID 4400 wrote to memory of 3324	4400	rundll32.exe	rundll32.exe
PID 3324 wrote to memory of 672	3324	rundll32.exe	cmd.exe
PID 3324 wrote to memory of 672	3324	rundll32.exe	cmd.exe
PID 3324 wrote to memory of 672	3324	rundll32.exe	cmd.exe
PID 3324 wrote to memory of 832	3324	rundll32.exe	wermgr.exe
PID 3324 wrote to memory of 832	3324	rundll32.exe	wermgr.exe
PID 3324 wrote to memory of 832	3324	rundll32.exe	wermgr.exe
PID 3324 wrote to memory of 832	3324	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\inv-1493703164-725307606.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:4768

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Frost.bitte,DllRegisterServer1
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:4400

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Frost.bitte,DllRegisterServer1
3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3324

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe
4⤵
PID:672

C:\Windows\system32\wermgr.exe
C:\Windows\system32\wermgr.exe
4⤵
- Suspicious use of AdjustPrivilegeToken
PID:832

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/832-19-0x00000255875D0000-0x00000255875D1000-memory.dmp

Filesize
4KB

Download
memory/832-18-0x0000025587590000-0x00000255875B8000-memory.dmp

Filesize
160KB

Download
memory/832-13-0x0000000000000000-mapping.dmp

Download
memory/3324-15-0x0000000004570000-0x00000000045B3000-memory.dmp

Filesize
268KB

Download
memory/3324-14-0x0000000003FC0000-0x0000000003FF6000-memory.dmp

Filesize
216KB

Download
memory/3324-9-0x0000000000000000-mapping.dmp

Download
memory/3324-20-0x0000000010000000-0x0000000010037000-memory.dmp

Filesize
220KB

Download
memory/3324-11-0x00000000044F0000-0x0000000004529000-memory.dmp

Filesize
228KB

Download
memory/3324-12-0x0000000004530000-0x0000000004567000-memory.dmp

Filesize
220KB

Download
memory/3324-17-0x0000000000971000-0x0000000000973000-memory.dmp

Filesize
8KB

Download
memory/3324-16-0x0000000004040000-0x0000000004041000-memory.dmp

Filesize
4KB

Download
memory/4400-7-0x0000000000000000-mapping.dmp

Download
memory/4768-2-0x00007FFACA170000-0x00007FFACA180000-memory.dmp

Filesize
64KB

Download
memory/4768-4-0x00007FFACA170000-0x00007FFACA180000-memory.dmp

Filesize
64KB

Download
memory/4768-5-0x00007FFAEE490000-0x00007FFAEEAC7000-memory.dmp

Filesize
6.2MB

Download
memory/4768-3-0x00007FFACA170000-0x00007FFACA180000-memory.dmp

Filesize
64KB

Download
memory/4768-6-0x00007FFACA170000-0x00007FFACA180000-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