emotet | bea8c98ae827f7f8985818cf0204c918743230e6ad0d2172ce8e9e5063b427da

General

Target

invoce n 599860 03_2023.doc
Size

510.2MB
MD5

316981e4b5eb4abdb7e76e9d9f751519
SHA1

6d42588c663945cce520e2ff109db9c335505f4c
SHA256

a9b4c8dc53050cebebfe8fa5f71f98e3fbb4efcfc617835d23b75619261cc0fc
SHA512

8386d4678cff6f55dfff599b103f2aff4cc6f34bd5936cf92f47cc432051c5205c01180f26ddf1d7f1b84ea8ea03a1eb9e5f0ff8662217aa5a586a0efe050107
SSDEEP

3072:brrCtKZF4eqZ627NHRxMvOwvzpl+vk6jZc:5F4eqYwHMvfvzpKk6Nc

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	1344	1828	regsvr32.exe	WINWORD.EXE

Loads dropped DLL 2 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

1344 regsvr32.exe
3400 regsvr32.exe

pid	process
1344	regsvr32.exe
3400	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\ZchEO.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\ZYwNjpEBfBKNqYbb\\ZchEO.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 1 IoCs
Uses user-agent string associated with script host/environment.

Processes:

description flow ioc

HTTP User-Agent header 37 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

1828 WINWORD.EXE
1828 WINWORD.EXE
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

1344 regsvr32.exe
1344 regsvr32.exe
3400 regsvr32.exe
3400 regsvr32.exe
3400 regsvr32.exe
3400 regsvr32.exe
Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

WINWORD.EXE

pid process

1828 WINWORD.EXE
1828 WINWORD.EXE
1828 WINWORD.EXE
1828 WINWORD.EXE
1828 WINWORD.EXE
1828 WINWORD.EXE
1828 WINWORD.EXE
1828 WINWORD.EXE

description	flow	ioc
HTTP User-Agent header	37	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

pid	process
1828	WINWORD.EXE
1828	WINWORD.EXE

pid	process
1344	regsvr32.exe
1344	regsvr32.exe
3400	regsvr32.exe
3400	regsvr32.exe
3400	regsvr32.exe
3400	regsvr32.exe

pid	process
1828	WINWORD.EXE
1828	WINWORD.EXE
1828	WINWORD.EXE
1828	WINWORD.EXE
1828	WINWORD.EXE
1828	WINWORD.EXE
1828	WINWORD.EXE
1828	WINWORD.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

WINWORD.EXEregsvr32.exe

description	pid	process	target process
PID 1828 wrote to memory of 1344	1828	WINWORD.EXE	regsvr32.exe
PID 1828 wrote to memory of 1344	1828	WINWORD.EXE	regsvr32.exe
PID 1344 wrote to memory of 3400	1344	regsvr32.exe	regsvr32.exe
PID 1344 wrote to memory of 3400	1344	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\invoce n 599860 03_2023.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:1828
- C:\Windows\System32\regsvr32.exe
  "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\004922.tmp"
  2⤵
  - Process spawned unexpected child process
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1344
- - C:\Windows\system32\regsvr32.exe
    C:\Windows\system32\regsvr32.exe "C:\Windows\system32\ZYwNjpEBfBKNqYbb\ZchEO.dll"
    3⤵
    - Loads dropped DLL
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    PID:3400

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\004922.tmp

Filesize
532.9MB

MD5
7291fb9bc7cccec7e9688247e80bf297

SHA1
63ebf96550a6e38539de9e9cbbe976a5855675a4

SHA256
bbaa295c4c2882f357aca0f1f9b6032523431c1e4dd98c998e5e06484f594694

SHA512
6dcf445f45e1571f15900d93523d220b9dc6c502ed712a65d173dde7b46c869cf0899c7b21d8de5bf5f7f8e173b5cc7a1af2d41566b8b683c9d5661de6e0c9e9

Download Submit
C:\Users\Admin\AppData\Local\Temp\004922.tmp

Filesize
532.9MB

MD5
7291fb9bc7cccec7e9688247e80bf297

SHA1
63ebf96550a6e38539de9e9cbbe976a5855675a4

SHA256
bbaa295c4c2882f357aca0f1f9b6032523431c1e4dd98c998e5e06484f594694

SHA512
6dcf445f45e1571f15900d93523d220b9dc6c502ed712a65d173dde7b46c869cf0899c7b21d8de5bf5f7f8e173b5cc7a1af2d41566b8b683c9d5661de6e0c9e9

Download Submit
C:\Users\Admin\AppData\Local\Temp\004923.zip

Filesize
972KB

MD5
c76d027912f9086d5b8d9b76b1ac9ef7

SHA1
f872776d63771045c1282d12cf8534199a3e541f

SHA256
3f2c75b08cc17faeb29e627a22bc8b8fd57d5c7731be8a2376a5c177551af026

SHA512
89c73a5cd9636b9b1af9ed7a0962b7e1673a546fcec4177a8f00ee71409694ac150e0abc7facf077b0816696cc3dc430014edc59f110f23b066618ca03b6abb7

Download Submit
C:\Windows\System32\ZYwNjpEBfBKNqYbb\ZchEO.dll

Filesize
532.9MB

MD5
7291fb9bc7cccec7e9688247e80bf297

SHA1
63ebf96550a6e38539de9e9cbbe976a5855675a4

SHA256
bbaa295c4c2882f357aca0f1f9b6032523431c1e4dd98c998e5e06484f594694

SHA512
6dcf445f45e1571f15900d93523d220b9dc6c502ed712a65d173dde7b46c869cf0899c7b21d8de5bf5f7f8e173b5cc7a1af2d41566b8b683c9d5661de6e0c9e9

Download Submit
memory/1344-175-0x0000000002A60000-0x0000000002ABA000-memory.dmp

Filesize
360KB

Download
memory/1344-179-0x0000000000FB0000-0x0000000000FB1000-memory.dmp

Filesize
4KB

Download
memory/1828-134-0x00007FFB8FA90000-0x00007FFB8FAA0000-memory.dmp

Filesize
64KB

Download
memory/1828-136-0x00007FFB8FA90000-0x00007FFB8FAA0000-memory.dmp

Filesize
64KB

Download
memory/1828-135-0x00007FFB8FA90000-0x00007FFB8FAA0000-memory.dmp

Filesize
64KB

Download
memory/1828-139-0x00007FFB8D670000-0x00007FFB8D680000-memory.dmp

Filesize
64KB

Download
memory/1828-137-0x00007FFB8FA90000-0x00007FFB8FAA0000-memory.dmp

Filesize
64KB

Download
memory/1828-138-0x00007FFB8D670000-0x00007FFB8D680000-memory.dmp

Filesize
64KB

Download
memory/1828-133-0x00007FFB8FA90000-0x00007FFB8FAA0000-memory.dmp

Filesize
64KB

Download
memory/1828-207-0x00007FFB8FA90000-0x00007FFB8FAA0000-memory.dmp

Filesize
64KB

Download
memory/1828-208-0x00007FFB8FA90000-0x00007FFB8FAA0000-memory.dmp

Filesize
64KB

Download
memory/1828-209-0x00007FFB8FA90000-0x00007FFB8FAA0000-memory.dmp

Filesize
64KB

Download
memory/1828-210-0x00007FFB8FA90000-0x00007FFB8FAA0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads