emotet | 273b13b692817e33ad527583c8594e133d378bfc4fdbd09be1c9228253024192

General

Target

efb7a3e2cb8f232021f1c5e081073998_JaffaCakes118.exe
Size

163KB
MD5

efb7a3e2cb8f232021f1c5e081073998
SHA1

0f7143d8798ea1ef4a3611410442732a9a23b13a
SHA256

273b13b692817e33ad527583c8594e133d378bfc4fdbd09be1c9228253024192
SHA512

b6b46eb1addb6598798e220b3727532dff13eb3287da23b6ad42eaca0f4f46c35703cfc4c1e19eb1d47c04fd06003a7c6b01ce1fbf0118125ef27d1c1b90d69e
SSDEEP

3072:4WMG0BC83uZtGi5jKJZxgedEZoj53JwU90WZXH6woQnk5+iIg:4XC83nZSedEZoj53lp6Inz

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	smallnis.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	smallnis.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	smallnis.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	smallnis.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	efb7a3e2cb8f232021f1c5e081073998_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	smallnis.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	smallnis.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	efb7a3e2cb8f232021f1c5e081073998_JaffaCakes118.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	smallnis.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	smallnis.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	smallnis.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
4272	smallnis.exe
4272	smallnis.exe
4272	smallnis.exe
4272	smallnis.exe
4272	smallnis.exe
4272	smallnis.exe
4272	smallnis.exe
4272	smallnis.exe
4272	smallnis.exe
4272	smallnis.exe
4272	smallnis.exe
4272	smallnis.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
3432	efb7a3e2cb8f232021f1c5e081073998_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3328 wrote to memory of 3432	3328	efb7a3e2cb8f232021f1c5e081073998_JaffaCakes118.exe	82
PID 3328 wrote to memory of 3432	3328	efb7a3e2cb8f232021f1c5e081073998_JaffaCakes118.exe	82
PID 3328 wrote to memory of 3432	3328	efb7a3e2cb8f232021f1c5e081073998_JaffaCakes118.exe	82
PID 1172 wrote to memory of 4272	1172	smallnis.exe	89
PID 1172 wrote to memory of 4272	1172	smallnis.exe	89
PID 1172 wrote to memory of 4272	1172	smallnis.exe	89

C:\Users\Admin\AppData\Local\Temp\efb7a3e2cb8f232021f1c5e081073998_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\efb7a3e2cb8f232021f1c5e081073998_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3328
- C:\Users\Admin\AppData\Local\Temp\efb7a3e2cb8f232021f1c5e081073998_JaffaCakes118.exe
  --ceae7799
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: RenamesItself
  PID:3432

C:\Windows\SysWOW64\smallnis.exe
"C:\Windows\SysWOW64\smallnis.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1172
- C:\Windows\SysWOW64\smallnis.exe
  --a66d0863
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  PID:4272

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

Replay Monitor

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Downloads

memory/1172-7-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1172-9-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3328-3-0x0000000002180000-0x0000000002191000-memory.dmp

Filesize
68KB

Download
memory/3328-0-0x0000000002180000-0x0000000002191000-memory.dmp

Filesize
68KB

Download
memory/3328-4-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3328-1-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3432-5-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3432-6-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3432-8-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3432-12-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4272-13-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4272-14-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4272-15-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4272-17-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download

Analysis

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