emotet | 5d5902223f5e340838a0fa579cd751d1e55c0be5943694b0061aed4d147f09ff

General

Target

Formular 2023.09.03_0902.doc
Size

501.4MB
MD5

eb8c4d15df3d23a23fc07217bbc7d421
SHA1

974a63a76637cf24e87d0baf264c68716edc9fe6
SHA256

e1bfad036ada626371f77502e13fa72c60610975c598b94e3956398ba243fd61
SHA512

420a6dd165546fc403e838b3b3d59aa8c8a333b1205d6d335e0ec48bfef592220c06a38590865d190df6ef44956309b07f94893f885b17f55ffb45c5dacf1c18
SSDEEP

6144:E9fcsHgsTGbWqjWQ6e7t/5MIUAWuVfzmSsWnpoWgXEyV/FF:2fPPGBWQ6CBMIUreiSXgXtF

Score

10^/10

emotet epoch4 banker persistence trojan

Malware Config

Extracted

Family

emotet

Botnet

Epoch4

C2

129.232.188.93:443

164.90.222.65:443

159.65.88.10:8080

172.105.226.75:8080

115.68.227.76:8080

187.63.160.88:80

169.57.156.166:8080

185.4.135.165:8080

153.126.146.25:7080

197.242.150.244:8080

139.59.126.41:443

186.194.240.217:443

103.132.242.26:8080

206.189.28.199:8080

163.44.196.120:8080

95.217.221.146:8080

159.89.202.34:443

119.59.103.152:8080

183.111.227.137:8080

201.94.166.162:443

eck1.plain

ecs1.plain

Signatures

Emotet
Emotet is a trojan that is primarily spread through spam emails.
trojan banker emotet

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

regsvr32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process	2760	4848	regsvr32.exe	WINWORD.EXE

Loads dropped DLL 2 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

2760 regsvr32.exe
4052 regsvr32.exe

pid	process
2760	regsvr32.exe
4052	regsvr32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

regsvr32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MuBBWXjJ.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\GqCRmWTfs\\MuBBWXjJ.dll\""	regsvr32.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:

WINWORD.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

WINWORD.EXE

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE

Script User-Agent 2 IoCs

Uses user-agent string associated with script host/environment.

Processes:

description	flow	ioc
HTTP User-Agent header	36	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	34	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

4848 WINWORD.EXE
4848 WINWORD.EXE
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

2760 regsvr32.exe
2760 regsvr32.exe
4052 regsvr32.exe
4052 regsvr32.exe
4052 regsvr32.exe
4052 regsvr32.exe
Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

WINWORD.EXE

pid process

4848 WINWORD.EXE
4848 WINWORD.EXE
4848 WINWORD.EXE
Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

WINWORD.EXE

pid process

4848 WINWORD.EXE
4848 WINWORD.EXE
4848 WINWORD.EXE
4848 WINWORD.EXE
4848 WINWORD.EXE
4848 WINWORD.EXE
4848 WINWORD.EXE
4848 WINWORD.EXE

pid	process
4848	WINWORD.EXE
4848	WINWORD.EXE

pid	process
2760	regsvr32.exe
2760	regsvr32.exe
4052	regsvr32.exe
4052	regsvr32.exe
4052	regsvr32.exe
4052	regsvr32.exe

pid	process
4848	WINWORD.EXE
4848	WINWORD.EXE
4848	WINWORD.EXE

pid	process
4848	WINWORD.EXE
4848	WINWORD.EXE
4848	WINWORD.EXE
4848	WINWORD.EXE
4848	WINWORD.EXE
4848	WINWORD.EXE
4848	WINWORD.EXE
4848	WINWORD.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

WINWORD.EXEregsvr32.exe

description	pid	process	target process
PID 4848 wrote to memory of 2760	4848	WINWORD.EXE	regsvr32.exe
PID 4848 wrote to memory of 2760	4848	WINWORD.EXE	regsvr32.exe
PID 2760 wrote to memory of 4052	2760	regsvr32.exe	regsvr32.exe
PID 2760 wrote to memory of 4052	2760	regsvr32.exe	regsvr32.exe

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\Formular 2023.09.03_0902.doc" /o ""
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:4848

C:\Windows\System32\regsvr32.exe
"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\122626.tmp"
2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2760

C:\Windows\system32\regsvr32.exe
C:\Windows\system32\regsvr32.exe "C:\Windows\system32\GqCRmWTfs\MuBBWXjJ.dll"
3⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
PID:4052

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

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\AppData\Local\Temp\122626.tmp

Filesize
528.5MB

MD5
d86ef1b48296cdcd77a87b86aaa8d69e

SHA1
5898d408f0ff95094a81bbea7cae41a247285ffa

SHA256
61d1979dd3218b41992f2c017b7a748772a4e731c78e53de4ae4cf474fa6c897

SHA512
c58414dd68195d2ce085e14f52f6be161c21df3ad6c70d856dd7729af5e61a03f1e18d70b4842dd1909440cae17285fa9c0844a6ce9a4b9f38e32817666540e7

Download Submit
C:\Users\Admin\AppData\Local\Temp\122626.tmp

Filesize
528.5MB

MD5
d86ef1b48296cdcd77a87b86aaa8d69e

SHA1
5898d408f0ff95094a81bbea7cae41a247285ffa

SHA256
61d1979dd3218b41992f2c017b7a748772a4e731c78e53de4ae4cf474fa6c897

SHA512
c58414dd68195d2ce085e14f52f6be161c21df3ad6c70d856dd7729af5e61a03f1e18d70b4842dd1909440cae17285fa9c0844a6ce9a4b9f38e32817666540e7

Download Submit
C:\Users\Admin\AppData\Local\Temp\122627.zip

Filesize
813KB

MD5
9d87f89d198d252433d3aa57d30a7f2a

SHA1
b03fb7fe7765e5457ff78624a8073be6e200b850

SHA256
d8a70af3e78ecc413497c9f6c6a8f0ca4a3a85756bf3b11b8ac158173ce110bf

SHA512
0d41db6a87f29c9afeac60dbf55d517a6287bd2504b6b04de6bc91868a366d53c3514f6063d6e435162ca2928995a00f9230d19a90801dc88ab9f6e53bce9446

Download Submit
C:\Windows\System32\GqCRmWTfs\MuBBWXjJ.dll

Filesize
528.5MB

MD5
d86ef1b48296cdcd77a87b86aaa8d69e

SHA1
5898d408f0ff95094a81bbea7cae41a247285ffa

SHA256
61d1979dd3218b41992f2c017b7a748772a4e731c78e53de4ae4cf474fa6c897

SHA512
c58414dd68195d2ce085e14f52f6be161c21df3ad6c70d856dd7729af5e61a03f1e18d70b4842dd1909440cae17285fa9c0844a6ce9a4b9f38e32817666540e7

Download Submit
memory/2760-179-0x0000000000CD0000-0x0000000000CD1000-memory.dmp

Filesize
4KB

Download
memory/2760-176-0x0000000180000000-0x000000018002D000-memory.dmp

Filesize
180KB

Download
memory/4052-192-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/4848-137-0x00007FFB6E730000-0x00007FFB6E740000-memory.dmp

Filesize
64KB

Download
memory/4848-163-0x000001B248780000-0x000001B2487BB000-memory.dmp

Filesize
236KB

Download
memory/4848-164-0x000001B2487E0000-0x000001B248807000-memory.dmp

Filesize
156KB

Download
memory/4848-139-0x00007FFB6BF00000-0x00007FFB6BF10000-memory.dmp

Filesize
64KB

Download
memory/4848-138-0x00007FFB6BF00000-0x00007FFB6BF10000-memory.dmp

Filesize
64KB

Download
memory/4848-133-0x00007FFB6E730000-0x00007FFB6E740000-memory.dmp

Filesize
64KB

Download
memory/4848-136-0x00007FFB6E730000-0x00007FFB6E740000-memory.dmp

Filesize
64KB

Download
memory/4848-135-0x00007FFB6E730000-0x00007FFB6E740000-memory.dmp

Filesize
64KB

Download
memory/4848-190-0x000001B248780000-0x000001B2487BB000-memory.dmp

Filesize
236KB

Download
memory/4848-134-0x00007FFB6E730000-0x00007FFB6E740000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads