emotet | af0c7d355bb6a495d038fd05217209054107d31aa6199c491b74ae3d24b11c7e

Analysis

max time kernel
50s
max time network
103s
platform
windows10-1703_x64
resource
win10-20230220-en
resource tags

arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
submitted
23-03-2023 00:52

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General

Target

af0c7d355bb6a495d038fd05217209054107d31aa6199c491b74ae3d24b11c7e.wsf
Size

61KB
MD5

45282862aeb428ffb5d4986704a8f4d5
SHA1

fa2b0a82f3ca6bc7c00704556c9494b303613972
SHA256

af0c7d355bb6a495d038fd05217209054107d31aa6199c491b74ae3d24b11c7e
SHA512

db6457af502f45665ce4cc6573c5746607d8ffc661f0dcb224beceed93886f6c6194561cacc0efa543f0b2f62db976742f42c6c8102c5b11b65329757110b1db
SSDEEP

768:6hKs7p4MAPEQbhh/8avllsFEaN3K19Z5zkzCIi5:6L7p4MafVLYEaN3K19ZWzCn5

Score

10^/10

emotet epoch5 banker persistence trojan

Malware Config

Extracted

Family

emotet

Botnet

Epoch5

103.85.95.4:8080

103.224.241.74:8080

178.238.225.252:8080

37.59.103.148:8080

78.47.204.80:443

138.197.14.67:8080

128.199.242.164:8080

54.37.228.122:443

37.44.244.177:8080

139.59.80.108:8080

218.38.121.17:443

82.98.180.154:7080

114.79.130.68:443

159.65.135.222:7080

174.138.33.49:7080

195.77.239.39:8080

193.194.92.175:443

198.199.70.22:8080

85.214.67.203:8080

93.84.115.205:7080

ecs1.plain

eck1.plain

Signatures

Emotet
Emotet is a trojan that is primarily spread through spam emails.
trojan banker emotet
Blocklisted process makes network request 1 IoCs

Processes:

WScript.exe

flow pid process

2 3588 WScript.exe
Downloads MZ/PE file
Loads dropped DLL 1 IoCs

Processes:

regsvr32.exe

pid process

2372 regsvr32.exe

flow	pid	process
2	3588	WScript.exe

pid	process
2372	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\yiyC.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\DUHahJOaILru\\yiyC.dll\""	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	regsvr32.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.

Processes:

description flow ioc

HTTP User-Agent header 2 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

2372 regsvr32.exe
2372 regsvr32.exe
4824 regsvr32.exe
4824 regsvr32.exe
4824 regsvr32.exe
4824 regsvr32.exe

description	flow	ioc
HTTP User-Agent header	2	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

pid	process
2372	regsvr32.exe
2372	regsvr32.exe
4824	regsvr32.exe
4824	regsvr32.exe
4824	regsvr32.exe
4824	regsvr32.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

WScript.exeregsvr32.exe

description	pid	process	target process
PID 3588 wrote to memory of 2372	3588	WScript.exe	regsvr32.exe
PID 3588 wrote to memory of 2372	3588	WScript.exe	regsvr32.exe
PID 2372 wrote to memory of 4824	2372	regsvr32.exe	regsvr32.exe
PID 2372 wrote to memory of 4824	2372	regsvr32.exe	regsvr32.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\af0c7d355bb6a495d038fd05217209054107d31aa6199c491b74ae3d24b11c7e.wsf"
1⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:3588

C:\Windows\System32\regsvr32.exe
"C:\Windows\System32\regsvr32.exe" "C:\Users\Admin\AppData\Local\Temp\rad3BC91.tmp.dll"
2⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2372

C:\Windows\system32\regsvr32.exe
C:\Windows\system32\regsvr32.exe "C:\Windows\system32\DUHahJOaILru\yiyC.dll"
3⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
PID:4824

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\rad3BC91.tmp.dll
Filesize
561KB

MD5
c901c8089c5e017f8e9b4b15c8ef154f

SHA1
336c2bea43bfa2e8afd27a164dba640f36c0013c

SHA256
fd79e8fa5e3801101a1305b6aba7a5e7fdc852ed9036d6d9a5210be414a5cc5a

SHA512
9ff052f9fc9cc3cf74b170f76d6a20a01c5dbb74b2d97edc9e55b75f52b408f3104e49bf290773bd63d216f2787d945aa7d954b58e927c99e1db18c6a7d74ade

Download Submit
\Users\Admin\AppData\Local\Temp\rad3BC91.tmp.dll
Filesize
561KB

MD5
c901c8089c5e017f8e9b4b15c8ef154f

SHA1
336c2bea43bfa2e8afd27a164dba640f36c0013c

SHA256
fd79e8fa5e3801101a1305b6aba7a5e7fdc852ed9036d6d9a5210be414a5cc5a

SHA512
9ff052f9fc9cc3cf74b170f76d6a20a01c5dbb74b2d97edc9e55b75f52b408f3104e49bf290773bd63d216f2787d945aa7d954b58e927c99e1db18c6a7d74ade

Download Submit
memory/2372-122-0x0000000002230000-0x000000000225C000-memory.dmp

Filesize
176KB

Download
memory/2372-127-0x0000000000980000-0x0000000000981000-memory.dmp

Filesize
4KB

Download