emotet | ea1a1bf26d5edf12bdfddc2ec90a78fc6ddbdeb6953fad60753b45115f201bf3

Analysis

max time kernel
92s
max time network
137s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
03-11-2022 13:17

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General

Target

ea1a1bf26d5edf12bdfddc2ec90a78fc6ddbdeb6953fad60753b45115f201bf3.dll
Size

818KB
MD5

c177d6575ca098e4c26da0a96ff0f17b
SHA1

eb7d6fd6c2d44d7c7b43c4bc501e7b76b75602af
SHA256

ea1a1bf26d5edf12bdfddc2ec90a78fc6ddbdeb6953fad60753b45115f201bf3
SHA512

22fb122c6f5994f71256b172515df26f7345bf5adc00f5d7dfbeefe5ec0ce7ec6edeaf27552acf5aa709ac6a1d3c04ec9bb63425fa456a09be50a2238c5fb556
SSDEEP

12288:NdewIvxiRO9n6DPBt9bu8X+L81JcZl1rMx48/2aS4/2YX:NYwIvxFMXn+L8zcZ7rywC2Y

Score

10^/10

emotet banker persistence trojan

Malware Config

Signatures

Emotet
Emotet is a trojan that is primarily spread through spam emails.
trojan banker emotet

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XfesmRvUs.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\OkWlsd\\XfesmRvUs.dll\""	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4248	regsvr32.exe
4248	regsvr32.exe
3840	regsvr32.exe
3840	regsvr32.exe
3840	regsvr32.exe
3840	regsvr32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4248	regsvr32.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4248 wrote to memory of 3840	4248	regsvr32.exe	66
PID 4248 wrote to memory of 3840	4248	regsvr32.exe	66

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\ea1a1bf26d5edf12bdfddc2ec90a78fc6ddbdeb6953fad60753b45115f201bf3.dll
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:4248
- C:\Windows\system32\regsvr32.exe
  C:\Windows\system32\regsvr32.exe "C:\Windows\system32\OkWlsd\XfesmRvUs.dll"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  PID:3840

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4248-119-0x0000000180000000-0x0000000180030000-memory.dmp

Filesize
192KB

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