emotet | f72c3339a6ce6a8ba0fe430773d99e890d19d54357d14e838501bfea0b1cb2f1

General

Target

2023-03-22_0820.doc
Size

207KB
MD5

ca35c5ec8c75acc2c9ba7c19076ade0d
SHA1

ca31df8e4d94ed1d9648f103462f11988e87e77b
SHA256

f72c3339a6ce6a8ba0fe430773d99e890d19d54357d14e838501bfea0b1cb2f1
SHA512

6b51039c707b2f89f495d94b49c2cb3d57132bc333933687e3e7c598aa2b6ee9132c6e4863b92f52ac78227e6e515b8ee0bc6a414e2e2f5aa06f499dfa0da218
SSDEEP

3072:r43Tj6XFk1R81XNvvMGSsLyVwy+WNX3pMwwrnYD5LPfF:r43T2N++WF3KfrYD5LPfF

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	1348	1040	regsvr32.exe	WINWORD.EXE

Loads dropped DLL 2 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

1348 regsvr32.exe
2536 regsvr32.exe

pid	process
1348	regsvr32.exe
2536	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\xxYNYSbtTXT.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\YgWjKmaG\\xxYNYSbtTXT.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 1 IoCs
Uses user-agent string associated with script host/environment.

Processes:

description flow ioc

HTTP User-Agent header 20 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

1040 WINWORD.EXE
1040 WINWORD.EXE
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

1348 regsvr32.exe
1348 regsvr32.exe
2536 regsvr32.exe
2536 regsvr32.exe
2536 regsvr32.exe
2536 regsvr32.exe
Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

WINWORD.EXE

pid process

1040 WINWORD.EXE
1040 WINWORD.EXE
1040 WINWORD.EXE
1040 WINWORD.EXE
1040 WINWORD.EXE
1040 WINWORD.EXE
1040 WINWORD.EXE
1040 WINWORD.EXE

description	flow	ioc
HTTP User-Agent header	20	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

pid	process
1040	WINWORD.EXE
1040	WINWORD.EXE

pid	process
1348	regsvr32.exe
1348	regsvr32.exe
2536	regsvr32.exe
2536	regsvr32.exe
2536	regsvr32.exe
2536	regsvr32.exe

pid	process
1040	WINWORD.EXE
1040	WINWORD.EXE
1040	WINWORD.EXE
1040	WINWORD.EXE
1040	WINWORD.EXE
1040	WINWORD.EXE
1040	WINWORD.EXE
1040	WINWORD.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

WINWORD.EXEregsvr32.exe

description	pid	process	target process
PID 1040 wrote to memory of 1348	1040	WINWORD.EXE	regsvr32.exe
PID 1040 wrote to memory of 1348	1040	WINWORD.EXE	regsvr32.exe
PID 1348 wrote to memory of 2536	1348	regsvr32.exe	regsvr32.exe
PID 1348 wrote to memory of 2536	1348	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_0820.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:1040

C:\Windows\System32\regsvr32.exe
"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\171719.tmp"
2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1348

C:\Windows\system32\regsvr32.exe
C:\Windows\system32\regsvr32.exe "C:\Windows\system32\YgWjKmaG\xxYNYSbtTXT.dll"
3⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
PID:2536

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\171719.tmp
Filesize
544.9MB

MD5
3a46a4374af06a7a1e895ef9e132ad9b

SHA1
acd6ebcb770060b1b1bff0de7859d0f4c1a67a69

SHA256
0f4ffe526542fbaf849b76bc36aaefb2d26fdccc7b4f2f2b422590194de004ab

SHA512
aef1e19c0c2f3d84a071f96fa831a161af61d4d43db25b283ca613eb8be3d39941f8492f07546c959009fd8fba96241dd4e923bcee45b4b37358c07513fa364a

Download Submit
C:\Users\Admin\AppData\Local\Temp\171719.tmp
Filesize
544.9MB

MD5
3a46a4374af06a7a1e895ef9e132ad9b

SHA1
acd6ebcb770060b1b1bff0de7859d0f4c1a67a69

SHA256
0f4ffe526542fbaf849b76bc36aaefb2d26fdccc7b4f2f2b422590194de004ab

SHA512
aef1e19c0c2f3d84a071f96fa831a161af61d4d43db25b283ca613eb8be3d39941f8492f07546c959009fd8fba96241dd4e923bcee45b4b37358c07513fa364a

Download Submit
C:\Users\Admin\AppData\Local\Temp\171720.zip
Filesize
984KB

MD5
b7ae9cdf6c88623f9b6f2bc70c0231c1

SHA1
c6a03f6bf951db2abf6eb2e634682c0f18b6927b

SHA256
062350f4a4cdea4fb834ab1c43b16f5516488be844caf75a02800ae80a4ea939

SHA512
2aee89ca93aef74581a395181fa9e808d0d126bee34d286768091c8067349a67529b90da2a876100aafec6bc84c2cf5168dae67ad4a626b341b74affd7c3b92b

Download Submit
C:\Windows\System32\YgWjKmaG\xxYNYSbtTXT.dll
Filesize
544.9MB

MD5
3a46a4374af06a7a1e895ef9e132ad9b

SHA1
acd6ebcb770060b1b1bff0de7859d0f4c1a67a69

SHA256
0f4ffe526542fbaf849b76bc36aaefb2d26fdccc7b4f2f2b422590194de004ab

SHA512
aef1e19c0c2f3d84a071f96fa831a161af61d4d43db25b283ca613eb8be3d39941f8492f07546c959009fd8fba96241dd4e923bcee45b4b37358c07513fa364a

Download Submit
memory/1040-137-0x00007FF7E3BB0000-0x00007FF7E3BC0000-memory.dmp

Filesize
64KB

Download
memory/1040-217-0x00007FF7E3BB0000-0x00007FF7E3BC0000-memory.dmp

Filesize
64KB

Download
memory/1040-139-0x00007FF7E1AC0000-0x00007FF7E1AD0000-memory.dmp

Filesize
64KB

Download
memory/1040-133-0x00007FF7E3BB0000-0x00007FF7E3BC0000-memory.dmp

Filesize
64KB

Download
memory/1040-136-0x00007FF7E3BB0000-0x00007FF7E3BC0000-memory.dmp

Filesize
64KB

Download
memory/1040-135-0x00007FF7E3BB0000-0x00007FF7E3BC0000-memory.dmp

Filesize
64KB

Download
memory/1040-221-0x0000029E92470000-0x0000029E92486000-memory.dmp

Filesize
88KB

Download
memory/1040-219-0x00007FF7E3BB0000-0x00007FF7E3BC0000-memory.dmp

Filesize
64KB

Download
memory/1040-184-0x0000029E92470000-0x0000029E92486000-memory.dmp

Filesize
88KB

Download
memory/1040-134-0x00007FF7E3BB0000-0x00007FF7E3BC0000-memory.dmp

Filesize
64KB

Download
memory/1040-138-0x00007FF7E1AC0000-0x00007FF7E1AD0000-memory.dmp

Filesize
64KB

Download
memory/1040-218-0x00007FF7E3BB0000-0x00007FF7E3BC0000-memory.dmp

Filesize
64KB

Download
memory/1040-220-0x00007FF7E3BB0000-0x00007FF7E3BC0000-memory.dmp

Filesize
64KB

Download
memory/1348-183-0x0000000001200000-0x0000000001201000-memory.dmp

Filesize
4KB

Download
memory/1348-179-0x0000000002990000-0x00000000029EA000-memory.dmp

Filesize
360KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads