emotet | 7d18263d9931d94007e380789abb9c41c120c989a0611b193f2fa47a4c0fb0c3

General

Target

Invoice N 912727 03-2023.doc
Size

825KB
MD5

f6151d83feee5bd3252001e530c801c3
SHA1

ed202e1c1ee596acc984279b7a15c3487e097473
SHA256

7d18263d9931d94007e380789abb9c41c120c989a0611b193f2fa47a4c0fb0c3
SHA512

411a9cfb079eb9bf2d0c851d71c1e4177078884f6fcc01883a9126868b70bc75d543b93b3a682bb9f7e7da84de20c5ee85401ac5e3b94727be7a80b06132fc38
SSDEEP

12288:XxYDQ8EW+Ba+qKYR08a72L2X0dMzPPqvBUEu3uNsRAPYwT4q3MJ/d:2DPElaSUqqafj9Q4ZJ/d

Score

10^/10

emotet epoch4 banker persistence trojan

Malware Config

Extracted

Family

emotet

Botnet

Epoch4

C2

164.68.99.3:8080

164.90.222.65:443

186.194.240.217:443

1.234.2.232:8080

103.75.201.2:443

187.63.160.88:80

147.139.166.154:8080

91.207.28.33:8080

5.135.159.50:443

153.92.5.27:8080

213.239.212.5:443

103.43.75.120:443

159.65.88.10:8080

167.172.253.162:8080

153.126.146.25:7080

119.59.103.152:8080

107.170.39.149:8080

183.111.227.137:8080

159.89.202.34:443

110.232.117.186:8080

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	5056	1516	regsvr32.exe	WINWORD.EXE

Loads dropped DLL 2 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

5056 regsvr32.exe
4984 regsvr32.exe

pid	process
5056	regsvr32.exe
4984	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\RsPUye.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\BCXkOvhvkXOtHObu\\RsPUye.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 opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE

Script User-Agent 3 IoCs

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

Processes:

description	flow	ioc
HTTP User-Agent header	24	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	26	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	31	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

1516 WINWORD.EXE
1516 WINWORD.EXE
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

5056 regsvr32.exe
5056 regsvr32.exe
4984 regsvr32.exe
4984 regsvr32.exe
4984 regsvr32.exe
4984 regsvr32.exe
Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

WINWORD.EXE

pid process

1516 WINWORD.EXE
1516 WINWORD.EXE
1516 WINWORD.EXE
Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

WINWORD.EXE

pid process

1516 WINWORD.EXE
1516 WINWORD.EXE
1516 WINWORD.EXE
1516 WINWORD.EXE
1516 WINWORD.EXE
1516 WINWORD.EXE
1516 WINWORD.EXE
1516 WINWORD.EXE

pid	process
1516	WINWORD.EXE
1516	WINWORD.EXE

pid	process
5056	regsvr32.exe
5056	regsvr32.exe
4984	regsvr32.exe
4984	regsvr32.exe
4984	regsvr32.exe
4984	regsvr32.exe

pid	process
1516	WINWORD.EXE
1516	WINWORD.EXE
1516	WINWORD.EXE

pid	process
1516	WINWORD.EXE
1516	WINWORD.EXE
1516	WINWORD.EXE
1516	WINWORD.EXE
1516	WINWORD.EXE
1516	WINWORD.EXE
1516	WINWORD.EXE
1516	WINWORD.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

WINWORD.EXEregsvr32.exe

description	pid	process	target process
PID 1516 wrote to memory of 5056	1516	WINWORD.EXE	regsvr32.exe
PID 1516 wrote to memory of 5056	1516	WINWORD.EXE	regsvr32.exe
PID 5056 wrote to memory of 4984	5056	regsvr32.exe	regsvr32.exe
PID 5056 wrote to memory of 4984	5056	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\Invoice N 912727 03-2023.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:1516

C:\Windows\System32\regsvr32.exe
"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\155130.tmp"
2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5056

C:\Windows\system32\regsvr32.exe
C:\Windows\system32\regsvr32.exe "C:\Windows\system32\BCXkOvhvkXOtHObu\RsPUye.dll"
3⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
PID:4984

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\155130.tmp
Filesize
513.5MB

MD5
94c1331c27ae2c62ccf36dc37ae00ee7

SHA1
6b44006186400702bd74c0ab1adea6d44cda0e63

SHA256
fbd0de06efbbd6dd9def9377109dd6b65567d87d67beb16e458297e23f7265e5

SHA512
c8336363af181dba7d24153321acd6453e4c27351a202e6d535f9a4f15b6ded866966856623c6b3a0c00895d9165f6a0befbd7b8eb162c003b08a14f9dd83189

Download Submit
C:\Users\Admin\AppData\Local\Temp\155130.tmp
Filesize
513.5MB

MD5
94c1331c27ae2c62ccf36dc37ae00ee7

SHA1
6b44006186400702bd74c0ab1adea6d44cda0e63

SHA256
fbd0de06efbbd6dd9def9377109dd6b65567d87d67beb16e458297e23f7265e5

SHA512
c8336363af181dba7d24153321acd6453e4c27351a202e6d535f9a4f15b6ded866966856623c6b3a0c00895d9165f6a0befbd7b8eb162c003b08a14f9dd83189

Download Submit
C:\Users\Admin\AppData\Local\Temp\155138.zip
Filesize
808KB

MD5
3b7321bee4cd2257f6b7d35444beff8e

SHA1
50f23f1c651ae85edf1e67ed5f46fcce28b74a34

SHA256
908726ffcf59ee9ffee24cc569e985fac914fa815cb096a65c9e7b890c9d8b7a

SHA512
c6f8df8ee8086ef5c0a6d4cb99f3b012e1ca89a3f90725590dc68ae3ca33ef0619b565435a31d145825f718d54959f8a11e2d3d0b371dea2bb57f8a8465b82d8

Download Submit
C:\Windows\System32\BCXkOvhvkXOtHObu\RsPUye.dll
Filesize
513.5MB

MD5
94c1331c27ae2c62ccf36dc37ae00ee7

SHA1
6b44006186400702bd74c0ab1adea6d44cda0e63

SHA256
fbd0de06efbbd6dd9def9377109dd6b65567d87d67beb16e458297e23f7265e5

SHA512
c8336363af181dba7d24153321acd6453e4c27351a202e6d535f9a4f15b6ded866966856623c6b3a0c00895d9165f6a0befbd7b8eb162c003b08a14f9dd83189

Download Submit
memory/1516-136-0x00007FFCF5750000-0x00007FFCF5760000-memory.dmp

Filesize
64KB

Download
memory/1516-138-0x00007FFCF33F0000-0x00007FFCF3400000-memory.dmp

Filesize
64KB

Download
memory/1516-139-0x00007FFCF33F0000-0x00007FFCF3400000-memory.dmp

Filesize
64KB

Download
memory/1516-137-0x00007FFCF5750000-0x00007FFCF5760000-memory.dmp

Filesize
64KB

Download
memory/1516-133-0x00007FFCF5750000-0x00007FFCF5760000-memory.dmp

Filesize
64KB

Download
memory/1516-134-0x00007FFCF5750000-0x00007FFCF5760000-memory.dmp

Filesize
64KB

Download
memory/1516-135-0x00007FFCF5750000-0x00007FFCF5760000-memory.dmp

Filesize
64KB

Download
memory/5056-180-0x0000000180000000-0x000000018002D000-memory.dmp

Filesize
180KB

Download
memory/5056-183-0x0000000000970000-0x0000000000971000-memory.dmp

Filesize
4KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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