latentbot | 5863779952a99deaaca94f7eb60c5323f103b5d36668cadd6943e46936e4056a

General

Target

JaffaCakes118_a0342e72498b5cbda99e4077e4b3c502.exe
Size

341KB
MD5

a0342e72498b5cbda99e4077e4b3c502
SHA1

5ea34233206c49bb2057858ec239b486935b0abe
SHA256

5863779952a99deaaca94f7eb60c5323f103b5d36668cadd6943e46936e4056a
SHA512

14b751a9a1a75e033c7c0874d62fa861f81c4922381f00c84465f0887facab9d22ba0b4d44db9edefbc406c826dac596a1c1883503712286d0e21c8be3fc2632
SSDEEP

6144:G36i6htdvIydnCseroPQKvU9wPhFOXQsZrPTeoHm0HhDtdT22CpuvNJSE7V1XDnR:o6/DdQHroPTAwpwXQsBPTeoG0HhDtdC+

Score

10^/10

latentbot discovery persistence trojan upx

Malware Config

Extracted

Family

latentbot

C2

trannybisexul.zapto.org

Signatures

LatentBot
Modular trojan written in Delphi which has been in-the-wild since 2013.
trojan latentbot
Latentbot family
latentbot

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe C:\\Windows\\system32\\fservice.exe"	JaffaCakes118_a0342e72498b5cbda99e4077e4b3c502.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe C:\\Windows\\system32\\fservice.exe"	services.exe

Adds policy Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	JaffaCakes118_a0342e72498b5cbda99e4077e4b3c502.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\DirectX For Microsoft® Windows = "C:\\Windows\\system32\\fservice.exe"	JaffaCakes118_a0342e72498b5cbda99e4077e4b3c502.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	services.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\DirectX For Microsoft® Windows = "C:\\Windows\\system32\\fservice.exe"	services.exe

Boot or Logon Autostart Execution: Active Setup 2 TTPs 5 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\	services.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\StubPath = "C:\\Windows\\system\\sservice.exe"	services.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}	JaffaCakes118_a0342e72498b5cbda99e4077e4b3c502.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\	JaffaCakes118_a0342e72498b5cbda99e4077e4b3c502.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\StubPath = "C:\\Windows\\system\\sservice.exe"	JaffaCakes118_a0342e72498b5cbda99e4077e4b3c502.exe

Executes dropped EXE 2 IoCs

pid	Process
5072	fservice.exe
1592	services.exe

Loads dropped DLL 5 IoCs

pid	Process
1592	services.exe
1592	services.exe
1592	services.exe
5072	fservice.exe
752	JaffaCakes118_a0342e72498b5cbda99e4077e4b3c502.exe

Modifies WinLogon 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\	JaffaCakes118_a0342e72498b5cbda99e4077e4b3c502.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\	services.exe

Drops file in System32 directory 7 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\fservice.exe	services.exe
File created	C:\Windows\SysWOW64\fservice.exe	JaffaCakes118_a0342e72498b5cbda99e4077e4b3c502.exe
File opened for modification	C:\Windows\SysWOW64\fservice.exe	JaffaCakes118_a0342e72498b5cbda99e4077e4b3c502.exe
File created	C:\Windows\SysWOW64\fservice.exe	fservice.exe
File opened for modification	C:\Windows\SysWOW64\fservice.exe	fservice.exe
File created	C:\Windows\SysWOW64\winkey.dll	services.exe
File created	C:\Windows\SysWOW64\reginv.dll	services.exe

UPX packed file 22 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/752-0-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral1/files/0x00060000000236ea-7.dat	upx
behavioral1/memory/5072-9-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral1/memory/1592-19-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral1/memory/5072-34-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral1/memory/752-36-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral1/memory/1592-38-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral1/memory/752-39-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral1/memory/1592-40-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral1/memory/1592-42-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral1/memory/1592-43-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral1/memory/1592-44-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral1/memory/1592-45-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral1/memory/1592-46-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral1/memory/1592-47-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral1/memory/1592-48-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral1/memory/1592-49-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral1/memory/1592-50-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral1/memory/1592-51-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral1/memory/1592-52-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral1/memory/1592-53-0x0000000000400000-0x00000000005FF000-memory.dmp	upx
behavioral1/memory/1592-54-0x0000000000400000-0x00000000005FF000-memory.dmp	upx

Drops file in Windows directory 7 IoCs

description	ioc	Process
File created	C:\Windows\system\sservice.exe	JaffaCakes118_a0342e72498b5cbda99e4077e4b3c502.exe
File opened for modification	C:\Windows\system\sservice.exe	JaffaCakes118_a0342e72498b5cbda99e4077e4b3c502.exe
File created	C:\Windows\services.exe	fservice.exe
File opened for modification	C:\Windows\services.exe	fservice.exe
File created	C:\Windows\system\sservice.exe	fservice.exe
File opened for modification	C:\Windows\system\sservice.exe	fservice.exe
File created	C:\Windows\system\sservice.exe	services.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	JaffaCakes118_a0342e72498b5cbda99e4077e4b3c502.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fservice.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	services.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1592	services.exe
1592	services.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 752 wrote to memory of 5072	752	JaffaCakes118_a0342e72498b5cbda99e4077e4b3c502.exe	86
PID 752 wrote to memory of 5072	752	JaffaCakes118_a0342e72498b5cbda99e4077e4b3c502.exe	86
PID 752 wrote to memory of 5072	752	JaffaCakes118_a0342e72498b5cbda99e4077e4b3c502.exe	86
PID 5072 wrote to memory of 1592	5072	fservice.exe	87
PID 5072 wrote to memory of 1592	5072	fservice.exe	87
PID 5072 wrote to memory of 1592	5072	fservice.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a0342e72498b5cbda99e4077e4b3c502.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a0342e72498b5cbda99e4077e4b3c502.exe"
1⤵
- Modifies WinLogon for persistence
- Adds policy Run key to start application
- Boot or Logon Autostart Execution: Active Setup
- Loads dropped DLL
- Modifies WinLogon
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:752
- C:\Windows\SysWOW64\fservice.exe
  C:\Windows\system32\fservice.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5072
- - C:\Windows\services.exe
    C:\Windows\services.exe -XP
    3⤵
    - Modifies WinLogon for persistence
    - Adds policy Run key to start application
    - Boot or Logon Autostart Execution: Active Setup
    - Executes dropped EXE
    - Loads dropped DLL
    - Modifies WinLogon
    - Drops file in System32 directory
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:1592

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

4

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

2

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

4

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

2

T1547.004

Defense Evasion

Modify Registry

4

T1112

Credential Access

Discovery

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

C:\Windows\SysWOW64\fservice.exe

Filesize
341KB

MD5
a0342e72498b5cbda99e4077e4b3c502

SHA1
5ea34233206c49bb2057858ec239b486935b0abe

SHA256
5863779952a99deaaca94f7eb60c5323f103b5d36668cadd6943e46936e4056a

SHA512
14b751a9a1a75e033c7c0874d62fa861f81c4922381f00c84465f0887facab9d22ba0b4d44db9edefbc406c826dac596a1c1883503712286d0e21c8be3fc2632

Download Submit
C:\Windows\SysWOW64\reginv.dll

Filesize
36KB

MD5
d4a3f90e159ffbcbc4f9740de4b7f171

SHA1
0542f5d1e2c23dca8d90766b3a8537dc3880e5c9

SHA256
2200dd5f83d2fb8c5d3994206a4fa9ff34b4cbfe56ed39a9a03c954cf45d8f77

SHA512
5493beb50b5f7d8ec52f32718d01696916ae173456005d0c1294ce695161ce5004aff58ee3892bf5db0f9b23720146a6d3ae8ffbcbbd81f84d894fdc8cf75a94

Download Submit
C:\Windows\SysWOW64\winkey.dll

Filesize
24KB

MD5
43e7d9b875c921ba6be38d45540fb9dd

SHA1
f22a73fc0d4aa3ea6c0b8f61d974b028f308acc4

SHA256
f1b2b0abe844e6ba812c7f8709a463a7f6c56fa6ac38d376a0739cc3469f795b

SHA512
2e74e23c0875b69b82319391c392132f28f4eb45aa412805130382498ae48969a06a2b3a7528b626fa7d7ddb6b006f19f0ef8d73cf73cb9a0c0df44a21077622

Download Submit
memory/752-1-0x0000000000810000-0x0000000000811000-memory.dmp

Filesize
4KB

Download
memory/752-0-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/752-39-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/752-37-0x0000000000810000-0x0000000000811000-memory.dmp

Filesize
4KB

Download
memory/752-36-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/1592-41-0x0000000002760000-0x0000000002761000-memory.dmp

Filesize
4KB

Download
memory/1592-50-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/1592-19-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/1592-20-0x0000000002760000-0x0000000002761000-memory.dmp

Filesize
4KB

Download
memory/1592-38-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/1592-54-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/1592-53-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/1592-40-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/1592-42-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/1592-43-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/1592-44-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/1592-45-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/1592-46-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/1592-47-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/1592-48-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/1592-49-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/1592-52-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/1592-51-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/5072-34-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/5072-9-0x0000000000400000-0x00000000005FF000-memory.dmp

Filesize
2.0MB

Download
memory/5072-10-0x0000000002170000-0x0000000002171000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads