emotet | 53a0177376a77a326faff38d768c0e373120e558b72719340ff557ce28034567

General

Target

OG259431307915205_202303220812.doc
Size

232KB
MD5

49a307bb3ccce451737f2d6ba035efcf
SHA1

7b2c5658f14b2999d4d2de3108a1ffeb04f0d899
SHA256

53a0177376a77a326faff38d768c0e373120e558b72719340ff557ce28034567
SHA512

a43c6578ffe7bedee0b3461e501a3490b9051a0891c7a119ce99820e826cb9b1e6658be9939923b8d00c3db2a73e86ffaebe59f42219ef1402988707bfa09e0c
SSDEEP

3072:3C4JpR+K9y3LtqjsW5rQWm65BxPiP0wjEwRzpswUSkCI1ev2+6ssXR:nD7435u5aWmyBxK3MCI1ev2+6V

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	2196	4692	regsvr32.exe	WINWORD.EXE

Loads dropped DLL 2 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

2196 regsvr32.exe
1676 regsvr32.exe

pid	process
2196	regsvr32.exe
1676	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\FYWUSTi.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\GkOuEZKOdf\\FYWUSTi.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 5 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)
HTTP User-Agent header	39	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	44	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	45	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	50	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

4692 WINWORD.EXE
4692 WINWORD.EXE
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

2196 regsvr32.exe
2196 regsvr32.exe
1676 regsvr32.exe
1676 regsvr32.exe
1676 regsvr32.exe
1676 regsvr32.exe
Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

WINWORD.EXE

pid process

4692 WINWORD.EXE
4692 WINWORD.EXE
4692 WINWORD.EXE
4692 WINWORD.EXE
4692 WINWORD.EXE
4692 WINWORD.EXE
4692 WINWORD.EXE
4692 WINWORD.EXE

pid	process
4692	WINWORD.EXE
4692	WINWORD.EXE

pid	process
2196	regsvr32.exe
2196	regsvr32.exe
1676	regsvr32.exe
1676	regsvr32.exe
1676	regsvr32.exe
1676	regsvr32.exe

pid	process
4692	WINWORD.EXE
4692	WINWORD.EXE
4692	WINWORD.EXE
4692	WINWORD.EXE
4692	WINWORD.EXE
4692	WINWORD.EXE
4692	WINWORD.EXE
4692	WINWORD.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

WINWORD.EXEregsvr32.exe

description	pid	process	target process
PID 4692 wrote to memory of 2196	4692	WINWORD.EXE	regsvr32.exe
PID 4692 wrote to memory of 2196	4692	WINWORD.EXE	regsvr32.exe
PID 2196 wrote to memory of 1676	2196	regsvr32.exe	regsvr32.exe
PID 2196 wrote to memory of 1676	2196	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\OG259431307915205_202303220812.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:4692
- C:\Windows\System32\regsvr32.exe
  "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\171412.tmp"
  2⤵
  - Process spawned unexpected child process
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2196
- - C:\Windows\system32\regsvr32.exe
    C:\Windows\system32\regsvr32.exe "C:\Windows\system32\GkOuEZKOdf\FYWUSTi.dll"
    3⤵
    - Loads dropped DLL
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    PID:1676

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\171412.tmp

Filesize
544.9MB

MD5
3a46a4374af06a7a1e895ef9e132ad9b

SHA1
acd6ebcb770060b1b1bff0de7859d0f4c1a67a69

SHA256
0f4ffe526542fbaf849b76bc36aaefb2d26fdccc7b4f2f2b422590194de004ab

SHA512
aef1e19c0c2f3d84a071f96fa831a161af61d4d43db25b283ca613eb8be3d39941f8492f07546c959009fd8fba96241dd4e923bcee45b4b37358c07513fa364a

Download Submit
C:\Users\Admin\AppData\Local\Temp\171412.tmp

Filesize
544.9MB

MD5
3a46a4374af06a7a1e895ef9e132ad9b

SHA1
acd6ebcb770060b1b1bff0de7859d0f4c1a67a69

SHA256
0f4ffe526542fbaf849b76bc36aaefb2d26fdccc7b4f2f2b422590194de004ab

SHA512
aef1e19c0c2f3d84a071f96fa831a161af61d4d43db25b283ca613eb8be3d39941f8492f07546c959009fd8fba96241dd4e923bcee45b4b37358c07513fa364a

Download Submit
C:\Users\Admin\AppData\Local\Temp\171415.zip

Filesize
984KB

MD5
b7ae9cdf6c88623f9b6f2bc70c0231c1

SHA1
c6a03f6bf951db2abf6eb2e634682c0f18b6927b

SHA256
062350f4a4cdea4fb834ab1c43b16f5516488be844caf75a02800ae80a4ea939

SHA512
2aee89ca93aef74581a395181fa9e808d0d126bee34d286768091c8067349a67529b90da2a876100aafec6bc84c2cf5168dae67ad4a626b341b74affd7c3b92b

Download Submit
C:\Windows\System32\GkOuEZKOdf\FYWUSTi.dll

Filesize
544.9MB

MD5
3a46a4374af06a7a1e895ef9e132ad9b

SHA1
acd6ebcb770060b1b1bff0de7859d0f4c1a67a69

SHA256
0f4ffe526542fbaf849b76bc36aaefb2d26fdccc7b4f2f2b422590194de004ab

SHA512
aef1e19c0c2f3d84a071f96fa831a161af61d4d43db25b283ca613eb8be3d39941f8492f07546c959009fd8fba96241dd4e923bcee45b4b37358c07513fa364a

Download Submit
memory/2196-179-0x0000000002310000-0x000000000236A000-memory.dmp

Filesize
360KB

Download
memory/2196-183-0x0000000000800000-0x0000000000801000-memory.dmp

Filesize
4KB

Download
memory/4692-136-0x00007FFB42DD0000-0x00007FFB42DE0000-memory.dmp

Filesize
64KB

Download
memory/4692-137-0x00007FFB42DD0000-0x00007FFB42DE0000-memory.dmp

Filesize
64KB

Download
memory/4692-135-0x00007FFB42DD0000-0x00007FFB42DE0000-memory.dmp

Filesize
64KB

Download
memory/4692-134-0x00007FFB42DD0000-0x00007FFB42DE0000-memory.dmp

Filesize
64KB

Download
memory/4692-139-0x00007FFB40510000-0x00007FFB40520000-memory.dmp

Filesize
64KB

Download
memory/4692-138-0x00007FFB40510000-0x00007FFB40520000-memory.dmp

Filesize
64KB

Download
memory/4692-133-0x00007FFB42DD0000-0x00007FFB42DE0000-memory.dmp

Filesize
64KB

Download
memory/4692-208-0x00007FFB42DD0000-0x00007FFB42DE0000-memory.dmp

Filesize
64KB

Download
memory/4692-210-0x00007FFB42DD0000-0x00007FFB42DE0000-memory.dmp

Filesize
64KB

Download
memory/4692-209-0x00007FFB42DD0000-0x00007FFB42DE0000-memory.dmp

Filesize
64KB

Download
memory/4692-211-0x00007FFB42DD0000-0x00007FFB42DE0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads