trickbot | 587ab4f5569b3d5064b93f4d8e12ff8ab7399a03a0c3304c8865db2b187b2272

General

Target

Invoice 717.xlsb
Size

97KB
MD5

aae44c3735592848cee672f1b4806026
SHA1

52cd5e0535d6562193a84005cf0f20ed1da7f54e
SHA256

587ab4f5569b3d5064b93f4d8e12ff8ab7399a03a0c3304c8865db2b187b2272
SHA512

7f9d3aa31499086fd52c9f351d2f216f061268e2ca4dd9a4722bce8245cebc8122018a7ec221fb4e10400e04c32a6e6731e0c4e9e620a742aa6d2ce44a431e7a

Score

10^/10

trickbot net16 banker trojan

Malware Config

Extracted

Family

trickbot

Version

2000029

Botnet

net16

C2

103.66.72.217:443

117.252.68.211:443

103.124.173.35:443

115.73.211.230:443

117.54.250.246:443

131.0.112.122:443

102.176.221.78:443

181.176.161.143:443

154.79.251.172:443

103.111.199.76:443

103.54.41.193:443

154.79.244.182:443

154.79.245.158:443

139.255.116.42:443

178.254.161.250:443

178.134.47.166:443

158.181.179.229:443

103.90.197.33:443

109.207.165.40:443

178.72.192.20:443

Attributes

autorun
Name:pwgrabb
Name:pwgrabc

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	4408	4436	rundll32.exe	EXCEL.EXE

Trickbot
Developed in 2016, TrickBot is one of the more recent banking Trojans.
trojan banker trickbot
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

4444 rundll32.exe

pid	process
4444	rundll32.exe

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

4436 EXCEL.EXE
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

wermgr.exe

description pid process

Token: SeDebugPrivilege 188 wermgr.exe

description	pid	process
Token: SeDebugPrivilege	188	wermgr.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4436	EXCEL.EXE
4436	EXCEL.EXE
4436	EXCEL.EXE
4436	EXCEL.EXE
4436	EXCEL.EXE
4436	EXCEL.EXE
4436	EXCEL.EXE
4436	EXCEL.EXE
4436	EXCEL.EXE
4436	EXCEL.EXE
4436	EXCEL.EXE
4436	EXCEL.EXE

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

EXCEL.EXErundll32.exerundll32.exe

description	pid	process	target process
PID 4436 wrote to memory of 4408	4436	EXCEL.EXE	rundll32.exe
PID 4436 wrote to memory of 4408	4436	EXCEL.EXE	rundll32.exe
PID 4408 wrote to memory of 4444	4408	rundll32.exe	rundll32.exe
PID 4408 wrote to memory of 4444	4408	rundll32.exe	rundll32.exe
PID 4408 wrote to memory of 4444	4408	rundll32.exe	rundll32.exe
PID 4444 wrote to memory of 188	4444	rundll32.exe	wermgr.exe
PID 4444 wrote to memory of 188	4444	rundll32.exe	wermgr.exe
PID 4444 wrote to memory of 188	4444	rundll32.exe	wermgr.exe
PID 4444 wrote to memory of 188	4444	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\Invoice 717.xlsb"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4436

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\ndfbsjskdg.idn,StartW
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:4408

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\ndfbsjskdg.idn,StartW
3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4444

C:\Windows\system32\wermgr.exe
C:\Windows\system32\wermgr.exe
4⤵
- Suspicious use of AdjustPrivilegeToken
PID:188

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\ndfbsjskdg.idn

MD5
0248aa78d8a4d231273d6589edb0a423

SHA1
276bdc086442cd91c5aed2db9edc95e2ea53e172

SHA256
a8f0fe4419ee163d9230feca6a00693c5f61948159fe869ead51ec3398b7038d

SHA512
ec571c0883101537b1da7b02bc14eb1b2cee26937aa58995c868fb893e4ba18b445664647f8118a862ee2a1d11b54cacfad013d21523661116e3ae598acef309

Download Submit
\Users\Admin\ndfbsjskdg.idn

MD5
0248aa78d8a4d231273d6589edb0a423

SHA1
276bdc086442cd91c5aed2db9edc95e2ea53e172

SHA256
a8f0fe4419ee163d9230feca6a00693c5f61948159fe869ead51ec3398b7038d

SHA512
ec571c0883101537b1da7b02bc14eb1b2cee26937aa58995c868fb893e4ba18b445664647f8118a862ee2a1d11b54cacfad013d21523661116e3ae598acef309

Download Submit
memory/188-189-0x0000022362600000-0x0000022362601000-memory.dmp

Filesize
4KB

Download
memory/188-188-0x00000223624F0000-0x0000022362518000-memory.dmp

Filesize
160KB

Download
memory/188-184-0x0000000000000000-mapping.dmp

Download
memory/4408-179-0x0000000000000000-mapping.dmp

Download
memory/4436-118-0x00007FF9B4570000-0x00007FF9B4580000-memory.dmp

Filesize
64KB

Download
memory/4436-123-0x00007FF9D3140000-0x00007FF9D5035000-memory.dmp

Filesize
31.0MB

Download
memory/4436-122-0x00007FF9B4570000-0x00007FF9B4580000-memory.dmp

Filesize
64KB

Download
memory/4436-121-0x00007FF9D5040000-0x00007FF9D612E000-memory.dmp

Filesize
16.9MB

Download
memory/4436-114-0x00007FF774220000-0x00007FF7777D6000-memory.dmp

Filesize
53.7MB

Download
memory/4436-117-0x00007FF9B4570000-0x00007FF9B4580000-memory.dmp

Filesize
64KB

Download
memory/4436-116-0x00007FF9B4570000-0x00007FF9B4580000-memory.dmp

Filesize
64KB

Download
memory/4436-115-0x00007FF9B4570000-0x00007FF9B4580000-memory.dmp

Filesize
64KB

Download
memory/4444-181-0x0000000000000000-mapping.dmp

Download
memory/4444-183-0x0000000003400000-0x000000000354A000-memory.dmp

Filesize
1.3MB

Download
memory/4444-186-0x0000000005210000-0x0000000005211000-memory.dmp

Filesize
4KB

Download
memory/4444-185-0x0000000005120000-0x0000000005163000-memory.dmp

Filesize
268KB

Download
memory/4444-187-0x00000000051F1000-0x00000000051F3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads