emotet | 67fd9afb3d59d1bbeb53cc212fd4d66c0d0af5274afa3a0f0dc82b018266a516

General

Target

f582da103c51f7bcdc2ee396fad2bd2c_JaffaCakes118.exe
Size

267KB
MD5

f582da103c51f7bcdc2ee396fad2bd2c
SHA1

a2ff74690436924198255a26bd473065092c85fb
SHA256

67fd9afb3d59d1bbeb53cc212fd4d66c0d0af5274afa3a0f0dc82b018266a516
SHA512

8f2f9ac4f775d50e72e3c241e7ebba48791f5fd8d1e84c8631cf09965f910676b7381b4fcdafaed3fd17c2106d26008420912bf2e9c17cf8ba4c503fdc16baa1
SSDEEP

6144:oRX2o6JvwA1DXDdNHvbyVfbWWbyHjaSKzdbybbybnv4ZPTlebuSE:oRB6JvdbDdNHvbyVfbWWbyHjaSabybb0

Score

10^/10

emotet banker discovery trojan

Malware Config

Signatures

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

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	serrandom.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	serrandom.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	serrandom.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	serrandom.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f582da103c51f7bcdc2ee396fad2bd2c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f582da103c51f7bcdc2ee396fad2bd2c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	serrandom.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	serrandom.exe

Modifies data under HKEY_USERS 3 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	serrandom.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	serrandom.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	serrandom.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
544	serrandom.exe
544	serrandom.exe
544	serrandom.exe
544	serrandom.exe
544	serrandom.exe
544	serrandom.exe
544	serrandom.exe
544	serrandom.exe
544	serrandom.exe
544	serrandom.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1912	f582da103c51f7bcdc2ee396fad2bd2c_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4220 wrote to memory of 1912	4220	f582da103c51f7bcdc2ee396fad2bd2c_JaffaCakes118.exe	82
PID 4220 wrote to memory of 1912	4220	f582da103c51f7bcdc2ee396fad2bd2c_JaffaCakes118.exe	82
PID 4220 wrote to memory of 1912	4220	f582da103c51f7bcdc2ee396fad2bd2c_JaffaCakes118.exe	82
PID 1672 wrote to memory of 544	1672	serrandom.exe	89
PID 1672 wrote to memory of 544	1672	serrandom.exe	89
PID 1672 wrote to memory of 544	1672	serrandom.exe	89

C:\Users\Admin\AppData\Local\Temp\f582da103c51f7bcdc2ee396fad2bd2c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f582da103c51f7bcdc2ee396fad2bd2c_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4220
- C:\Users\Admin\AppData\Local\Temp\f582da103c51f7bcdc2ee396fad2bd2c_JaffaCakes118.exe
  --7ceb9108
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: RenamesItself
  PID:1912

C:\Windows\SysWOW64\serrandom.exe
"C:\Windows\SysWOW64\serrandom.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1672
- C:\Windows\SysWOW64\serrandom.exe
  --a1d2bc99
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  PID:544

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/544-20-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/544-18-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/544-17-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/544-16-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1672-10-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1672-8-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1912-7-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1912-9-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1912-15-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1912-6-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1912-5-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4220-0-0x0000000002180000-0x0000000002191000-memory.dmp

Filesize
68KB

Download
memory/4220-4-0x0000000002180000-0x0000000002191000-memory.dmp

Filesize
68KB

Download
memory/4220-1-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

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