emotet | 828a308d7e541fb96aa897cb5e0cbf35dee1b7d9df9556a1a3b8486954714c2b

General

Target

2023-03-22_0821.doc
Size

229KB
MD5

d16fb990f2db97fdf879610ade214aed
SHA1

dbd20110ac267dc54d93b73e4abadef995a87411
SHA256

828a308d7e541fb96aa897cb5e0cbf35dee1b7d9df9556a1a3b8486954714c2b
SHA512

5923811a7d86bb5dc59ab07aa791dfc131512012e45fbb2c26eee751e23426c66f33f7bc4a3c34a4ca2340a7ab90fd868c6711dcfbf60218cfea68fb88ec0982
SSDEEP

3072:Z3KeWtsWzAhUDz4+1ka6+31RsoF7OSg8TnSjetGFah:ZKeRCmolJhh

Score

10^/10

emotet epoch4 banker persistence trojan

Malware Config

Extracted

Family

emotet

Botnet

Epoch4

C2

213.239.212.5:443

129.232.188.93:443

103.43.75.120:443

197.242.150.244:8080

1.234.2.232:8080

110.232.117.186:8080

95.217.221.146:8080

159.89.202.34:443

159.65.88.10:8080

82.223.21.224:8080

169.57.156.166:8080

45.176.232.124:443

45.235.8.30:8080

173.212.193.249:8080

107.170.39.149:8080

119.59.103.152:8080

167.172.199.165:8080

91.207.28.33:8080

185.4.135.165:8080

104.168.155.143:8080

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	2976	1680	regsvr32.exe	WINWORD.EXE

Loads dropped DLL 2 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

2976 regsvr32.exe
1856 regsvr32.exe

pid	process
2976	regsvr32.exe
1856	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\OJwgvLBjXSiYV.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\NJAMBeqEKHtVsZ\\OJwgvLBjXSiYV.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\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE

Script User-Agent 1 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)
Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

1680 WINWORD.EXE
1680 WINWORD.EXE
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

2976 regsvr32.exe
2976 regsvr32.exe
1856 regsvr32.exe
1856 regsvr32.exe
1856 regsvr32.exe
1856 regsvr32.exe
Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

WINWORD.EXE

pid process

1680 WINWORD.EXE
1680 WINWORD.EXE
1680 WINWORD.EXE
1680 WINWORD.EXE
1680 WINWORD.EXE
1680 WINWORD.EXE
1680 WINWORD.EXE
1680 WINWORD.EXE

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

pid	process
1680	WINWORD.EXE
1680	WINWORD.EXE

pid	process
2976	regsvr32.exe
2976	regsvr32.exe
1856	regsvr32.exe
1856	regsvr32.exe
1856	regsvr32.exe
1856	regsvr32.exe

pid	process
1680	WINWORD.EXE
1680	WINWORD.EXE
1680	WINWORD.EXE
1680	WINWORD.EXE
1680	WINWORD.EXE
1680	WINWORD.EXE
1680	WINWORD.EXE
1680	WINWORD.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

WINWORD.EXEregsvr32.exe

description	pid	process	target process
PID 1680 wrote to memory of 2976	1680	WINWORD.EXE	regsvr32.exe
PID 1680 wrote to memory of 2976	1680	WINWORD.EXE	regsvr32.exe
PID 2976 wrote to memory of 1856	2976	regsvr32.exe	regsvr32.exe
PID 2976 wrote to memory of 1856	2976	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\2023-03-22_0821.doc" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1680

C:\Windows\System32\regsvr32.exe
"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\171511.tmp"
2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2976

C:\Windows\system32\regsvr32.exe
C:\Windows\system32\regsvr32.exe "C:\Windows\system32\NJAMBeqEKHtVsZ\OJwgvLBjXSiYV.dll"
3⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
PID:1856

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\171511.tmp
Filesize
532.9MB

MD5
7291fb9bc7cccec7e9688247e80bf297

SHA1
63ebf96550a6e38539de9e9cbbe976a5855675a4

SHA256
bbaa295c4c2882f357aca0f1f9b6032523431c1e4dd98c998e5e06484f594694

SHA512
6dcf445f45e1571f15900d93523d220b9dc6c502ed712a65d173dde7b46c869cf0899c7b21d8de5bf5f7f8e173b5cc7a1af2d41566b8b683c9d5661de6e0c9e9

Download Submit
C:\Users\Admin\AppData\Local\Temp\171511.tmp
Filesize
532.9MB

MD5
7291fb9bc7cccec7e9688247e80bf297

SHA1
63ebf96550a6e38539de9e9cbbe976a5855675a4

SHA256
bbaa295c4c2882f357aca0f1f9b6032523431c1e4dd98c998e5e06484f594694

SHA512
6dcf445f45e1571f15900d93523d220b9dc6c502ed712a65d173dde7b46c869cf0899c7b21d8de5bf5f7f8e173b5cc7a1af2d41566b8b683c9d5661de6e0c9e9

Download Submit
C:\Users\Admin\AppData\Local\Temp\171512.zip
Filesize
972KB

MD5
77cfabf26034b53f7c2471e9aa073847

SHA1
9fb5c65d8c5e7fd0df8ca28ec5fe4a6e5a30c5b8

SHA256
98ac85e40373cd16f6910cfd4bd092ab15a6eda3b513bd09da39b6a29fcb3504

SHA512
25e37745433af2aeb85fa4c9d197efcde802025832b28aa173c89ca417ee42fe1106616d565c51bdda4cec13e8508f7f23aeacc431a010c5f4c68ce5d21040fc

Download Submit
C:\Windows\System32\NJAMBeqEKHtVsZ\OJwgvLBjXSiYV.dll
Filesize
532.9MB

MD5
7291fb9bc7cccec7e9688247e80bf297

SHA1
63ebf96550a6e38539de9e9cbbe976a5855675a4

SHA256
bbaa295c4c2882f357aca0f1f9b6032523431c1e4dd98c998e5e06484f594694

SHA512
6dcf445f45e1571f15900d93523d220b9dc6c502ed712a65d173dde7b46c869cf0899c7b21d8de5bf5f7f8e173b5cc7a1af2d41566b8b683c9d5661de6e0c9e9

Download Submit
memory/1680-134-0x00007FFCFC030000-0x00007FFCFC040000-memory.dmp

Filesize
64KB

Download
memory/1680-138-0x00007FFCF9860000-0x00007FFCF9870000-memory.dmp

Filesize
64KB

Download
memory/1680-139-0x00007FFCF9860000-0x00007FFCF9870000-memory.dmp

Filesize
64KB

Download
memory/1680-136-0x00007FFCFC030000-0x00007FFCFC040000-memory.dmp

Filesize
64KB

Download
memory/1680-135-0x00007FFCFC030000-0x00007FFCFC040000-memory.dmp

Filesize
64KB

Download
memory/1680-137-0x00007FFCFC030000-0x00007FFCFC040000-memory.dmp

Filesize
64KB

Download
memory/1680-133-0x00007FFCFC030000-0x00007FFCFC040000-memory.dmp

Filesize
64KB

Download
memory/1680-208-0x00007FFCFC030000-0x00007FFCFC040000-memory.dmp

Filesize
64KB

Download
memory/1680-209-0x00007FFCFC030000-0x00007FFCFC040000-memory.dmp

Filesize
64KB

Download
memory/1680-210-0x00007FFCFC030000-0x00007FFCFC040000-memory.dmp

Filesize
64KB

Download
memory/1680-211-0x00007FFCFC030000-0x00007FFCFC040000-memory.dmp

Filesize
64KB

Download
memory/2976-174-0x0000000002080000-0x00000000020DA000-memory.dmp

Filesize
360KB

Download
memory/2976-178-0x0000000001FD0000-0x0000000001FD1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads