emotet | 7770b38eb5e7a7ceba40f2ae8767f4e5714e814e4d338fc20062929c068d149f

General

Target

Kuh.kumamoto-u.ac.doc
Size

231KB
MD5

88a6a16bad4db86859538845078f132c
SHA1

7d1ee1b7cc321257aeae09676fa27111c90eee2c
SHA256

7770b38eb5e7a7ceba40f2ae8767f4e5714e814e4d338fc20062929c068d149f
SHA512

1a397dc2ac81d704603ea7ceda392ed060db8e37d44dde0d8a46ed95760cda84190136572774db8dd27bcb82f104f71640a7ebbc52ab2afc58e1dff79e7b4761
SSDEEP

3072:ZA+PsTZ4y349tHRZ8N0AV62fEKJ3GApcRrsUvjUwKZXOl:ZPkTmm4PH8N9VVEi3GRrRyK

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	4828	4512	regsvr32.exe	WINWORD.EXE

Loads dropped DLL 2 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

4828 regsvr32.exe
1556 regsvr32.exe

pid	process
4828	regsvr32.exe
1556	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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sIPCda.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\QHPzkxxSTg\\sIPCda.dll\""	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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 25 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

4512 WINWORD.EXE
4512 WINWORD.EXE
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

4828 regsvr32.exe
4828 regsvr32.exe
1556 regsvr32.exe
1556 regsvr32.exe
1556 regsvr32.exe
1556 regsvr32.exe
Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

WINWORD.EXE

pid process

4512 WINWORD.EXE
4512 WINWORD.EXE
4512 WINWORD.EXE
4512 WINWORD.EXE
4512 WINWORD.EXE
4512 WINWORD.EXE
4512 WINWORD.EXE

description	flow	ioc
HTTP User-Agent header	25	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

pid	process
4512	WINWORD.EXE
4512	WINWORD.EXE

pid	process
4828	regsvr32.exe
4828	regsvr32.exe
1556	regsvr32.exe
1556	regsvr32.exe
1556	regsvr32.exe
1556	regsvr32.exe

pid	process
4512	WINWORD.EXE
4512	WINWORD.EXE
4512	WINWORD.EXE
4512	WINWORD.EXE
4512	WINWORD.EXE
4512	WINWORD.EXE
4512	WINWORD.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

WINWORD.EXEregsvr32.exe

description	pid	process	target process
PID 4512 wrote to memory of 4828	4512	WINWORD.EXE	regsvr32.exe
PID 4512 wrote to memory of 4828	4512	WINWORD.EXE	regsvr32.exe
PID 4828 wrote to memory of 1556	4828	regsvr32.exe	regsvr32.exe
PID 4828 wrote to memory of 1556	4828	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\Kuh.kumamoto-u.ac.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:4512

C:\Windows\System32\regsvr32.exe
"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\002947.tmp"
2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4828

C:\Windows\system32\regsvr32.exe
C:\Windows\system32\regsvr32.exe "C:\Windows\system32\QHPzkxxSTg\sIPCda.dll"
3⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
PID:1556

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\002947.tmp
Filesize
534.9MB

MD5
c1207422044546c531c6272122d8ca86

SHA1
d9706680f9797aab1407658d906fb38035e41d0b

SHA256
7510c2f3b2095b817fffcaab8c048c17afe5e8ec75906638e9c709e7e49ea13a

SHA512
0d02bd03dab054abc08a9ab0c17e2518a9edb95de814c996c14bbef8bdb595d2a1c772d04b43402a4dce9a88c22ae4f08788189e3f481b2d58618bcfe4009f28

Download Submit
C:\Users\Admin\AppData\Local\Temp\002947.tmp
Filesize
534.9MB

MD5
c1207422044546c531c6272122d8ca86

SHA1
d9706680f9797aab1407658d906fb38035e41d0b

SHA256
7510c2f3b2095b817fffcaab8c048c17afe5e8ec75906638e9c709e7e49ea13a

SHA512
0d02bd03dab054abc08a9ab0c17e2518a9edb95de814c996c14bbef8bdb595d2a1c772d04b43402a4dce9a88c22ae4f08788189e3f481b2d58618bcfe4009f28

Download Submit
C:\Users\Admin\AppData\Local\Temp\002952.zip
Filesize
974KB

MD5
b6e41fb09958d9c062ea82d492db0b8b

SHA1
a21e6959264bb30d0f6ed3066bbae55f03fd7902

SHA256
7c92a1613c16ae9c2d401d18e1b13a58a7c96e85ee48ff3a68250ca2e35f00d1

SHA512
4d06f870693850d3c0c3fee74331ec50a634a4c904b403644dc332147a44e248d89c2d72c64632b514b7beb7f0a410916277bed9a26ab65b4568da92b71d0ad7

Download Submit
C:\Windows\System32\QHPzkxxSTg\sIPCda.dll
Filesize
534.9MB

MD5
c1207422044546c531c6272122d8ca86

SHA1
d9706680f9797aab1407658d906fb38035e41d0b

SHA256
7510c2f3b2095b817fffcaab8c048c17afe5e8ec75906638e9c709e7e49ea13a

SHA512
0d02bd03dab054abc08a9ab0c17e2518a9edb95de814c996c14bbef8bdb595d2a1c772d04b43402a4dce9a88c22ae4f08788189e3f481b2d58618bcfe4009f28

Download Submit
memory/4512-139-0x00007FF7F7FA0000-0x00007FF7F7FB0000-memory.dmp

Filesize
64KB

Download
memory/4512-138-0x00007FF7F7FA0000-0x00007FF7F7FB0000-memory.dmp

Filesize
64KB

Download
memory/4512-133-0x00007FF7FA810000-0x00007FF7FA820000-memory.dmp

Filesize
64KB

Download
memory/4512-137-0x00007FF7FA810000-0x00007FF7FA820000-memory.dmp

Filesize
64KB

Download
memory/4512-136-0x00007FF7FA810000-0x00007FF7FA820000-memory.dmp

Filesize
64KB

Download
memory/4512-135-0x00007FF7FA810000-0x00007FF7FA820000-memory.dmp

Filesize
64KB

Download
memory/4512-134-0x00007FF7FA810000-0x00007FF7FA820000-memory.dmp

Filesize
64KB

Download
memory/4828-179-0x0000000002090000-0x00000000020EA000-memory.dmp

Filesize
360KB

Download
memory/4828-183-0x0000000002020000-0x0000000002021000-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