emotet | 83e988460e2d1305223d78eed848f66fbe3fdfe9d6fa0a10a008e09867dc90cb

Analysis

max time kernel
600s
max time network
595s
platform
windows10_x64
resource
win10v20201028
submitted
24-01-2021 19:01

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General

Target

E3-20210122_075431.dll
Size

330KB
MD5

8d2f4a0fa3210f09a0b1e6d39596be02
SHA1

21d3798d1a29d9f66155f36539b514545ecbe6d2
SHA256

675242ac6a4551ef75937e33e617f536b9ff2bcfc0f208f8357ec123509859bb
SHA512

895e331dc99dfca3be7e61863ea178c8b3d5b231c1070f982267b570c65bfdba054cbea3d4e8a61dd82d138e9bb5a75905f320fdb0a68aa6576a4710322d7cc3

Score

10^/10

emotet epoch3 banker ransomware trojan

Malware Config

Extracted

Family

emotet

Botnet

Epoch3

132.248.38.158:80

203.157.152.9:7080

157.245.145.87:443

110.37.224.243:80

70.32.89.105:8080

185.142.236.163:443

192.241.220.183:8080

91.83.93.103:443

54.38.143.245:8080

192.210.217.94:8080

37.205.9.252:7080

78.90.78.210:80

182.73.7.59:8080

163.53.204.180:443

91.75.75.46:80

172.104.46.84:8080

161.49.84.2:80

27.78.27.110:443

203.160.167.243:80

109.99.146.210:8080

rsa_pubkey.plain

Signatures

Emotet
Emotet is a trojan that is primarily spread through spam emails.
trojan banker emotet
Blocklisted process makes network request 4 IoCs

Processes:

rundll32.exe

flow pid process

22 3168 rundll32.exe
23 3168 rundll32.exe
24 3168 rundll32.exe
25 3168 rundll32.exe
Drops file in System32 directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File opened for modification C:\Windows\SysWOW64\Kwvxealkpxykbs\dyfzjvsnfacau.ixi rundll32.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
ransomware

System Information Discovery
T1082

flow	pid	process
22	3168	rundll32.exe
23	3168	rundll32.exe
24	3168	rundll32.exe
25	3168	rundll32.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\Kwvxealkpxykbs\dyfzjvsnfacau.ixi	rundll32.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

rundll32.exe

pid	process
3168	rundll32.exe
3168	rundll32.exe
3168	rundll32.exe
3168	rundll32.exe
3168	rundll32.exe
3168	rundll32.exe
3168	rundll32.exe
3168	rundll32.exe
3168	rundll32.exe
3168	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

Processes:

rundll32.exe

pid process

4828 rundll32.exe

pid	process
4828	rundll32.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

rundll32.exerundll32.exerundll32.exe

description	pid	process	target process
PID 4692 wrote to memory of 4828	4692	rundll32.exe	rundll32.exe
PID 4692 wrote to memory of 4828	4692	rundll32.exe	rundll32.exe
PID 4692 wrote to memory of 4828	4692	rundll32.exe	rundll32.exe
PID 4828 wrote to memory of 4056	4828	rundll32.exe	rundll32.exe
PID 4828 wrote to memory of 4056	4828	rundll32.exe	rundll32.exe
PID 4828 wrote to memory of 4056	4828	rundll32.exe	rundll32.exe
PID 4056 wrote to memory of 3168	4056	rundll32.exe	rundll32.exe
PID 4056 wrote to memory of 3168	4056	rundll32.exe	rundll32.exe
PID 4056 wrote to memory of 3168	4056	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\E3-20210122_075431.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4692
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\E3-20210122_075431.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:4828
- - C:\Windows\SysWOW64\rundll32.exe
    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Kwvxealkpxykbs\dyfzjvsnfacau.ixi",SphlrbBy
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4056
  - - C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Kwvxealkpxykbs\dyfzjvsnfacau.ixi",#1
      4⤵
      Blocklisted process makes network request
      Suspicious behavior: EnumeratesProcesses
      PID:3168

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3168-6-0x0000000000000000-mapping.dmp

Download
memory/4056-5-0x0000000000000000-mapping.dmp

Download
memory/4828-2-0x0000000000000000-mapping.dmp

Download
memory/4828-3-0x00000000006E0000-0x00000000006FF000-memory.dmp

Filesize
124KB

Download
memory/4828-4-0x0000000010000000-0x0000000010023000-memory.dmp

Filesize
140KB

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