cycbot | e8119f901cd0e3b92f3edbc74658bb8bcbc34e1c5206f98f8c9552b90d9e4e62

General

Target

dd1fdb5b5ee33661e34e1208ff1856cb_JaffaCakes118.exe
Size

188KB
MD5

dd1fdb5b5ee33661e34e1208ff1856cb
SHA1

f872d8a3f12d2723c4d07fdf86ed79f9802af858
SHA256

e8119f901cd0e3b92f3edbc74658bb8bcbc34e1c5206f98f8c9552b90d9e4e62
SHA512

580a092b4fe1786371e4a0da5cd4e7788c3987da3d7d2c256c8d892bd841f30d1e0a6180da71d139070121680c0d35e03023f949ac7b14378a6557af95cbe988
SSDEEP

3072:XAKEOMP7y1kVeEiA+w6LhuHVEJIX+nFtAF8rq3j+6rrL3wbBv5JnP8bqJHQvQW8q:7E/7kceEifw6LQHxuFttF6rA9v5JP8bv

Score

10^/10

cycbot backdoor discovery persistence rat spyware stealer upx

Malware Config

Signatures

Cycbot
Cycbot is a backdoor and trojan written in C++..
backdoor rat cycbot
Cycbot family
cycbot

Detects Cycbot payload 5 IoCs

Cycbot is a backdoor and trojan written in C++.

resource	yara_rule
behavioral1/memory/2156-8-0x0000000000400000-0x000000000046E000-memory.dmp	family_cycbot
behavioral1/memory/2996-16-0x0000000000400000-0x000000000046E000-memory.dmp	family_cycbot
behavioral1/memory/2996-76-0x0000000000400000-0x000000000046E000-memory.dmp	family_cycbot
behavioral1/memory/3020-81-0x0000000000400000-0x000000000046E000-memory.dmp	family_cycbot
behavioral1/memory/2996-188-0x0000000000400000-0x000000000046E000-memory.dmp	family_cycbot

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\dwm.exe"	dd1fdb5b5ee33661e34e1208ff1856cb_JaffaCakes118.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2996-2-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral1/memory/2156-5-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral1/memory/2156-8-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral1/memory/2156-7-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral1/memory/2996-16-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral1/memory/2996-76-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral1/memory/3020-79-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral1/memory/3020-81-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral1/memory/2996-188-0x0000000000400000-0x000000000046E000-memory.dmp	upx

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	dd1fdb5b5ee33661e34e1208ff1856cb_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dd1fdb5b5ee33661e34e1208ff1856cb_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dd1fdb5b5ee33661e34e1208ff1856cb_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2996 wrote to memory of 2156	2996	dd1fdb5b5ee33661e34e1208ff1856cb_JaffaCakes118.exe	30
PID 2996 wrote to memory of 2156	2996	dd1fdb5b5ee33661e34e1208ff1856cb_JaffaCakes118.exe	30
PID 2996 wrote to memory of 2156	2996	dd1fdb5b5ee33661e34e1208ff1856cb_JaffaCakes118.exe	30
PID 2996 wrote to memory of 2156	2996	dd1fdb5b5ee33661e34e1208ff1856cb_JaffaCakes118.exe	30
PID 2996 wrote to memory of 3020	2996	dd1fdb5b5ee33661e34e1208ff1856cb_JaffaCakes118.exe	32
PID 2996 wrote to memory of 3020	2996	dd1fdb5b5ee33661e34e1208ff1856cb_JaffaCakes118.exe	32
PID 2996 wrote to memory of 3020	2996	dd1fdb5b5ee33661e34e1208ff1856cb_JaffaCakes118.exe	32
PID 2996 wrote to memory of 3020	2996	dd1fdb5b5ee33661e34e1208ff1856cb_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\dd1fdb5b5ee33661e34e1208ff1856cb_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\dd1fdb5b5ee33661e34e1208ff1856cb_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2996
- C:\Users\Admin\AppData\Local\Temp\dd1fdb5b5ee33661e34e1208ff1856cb_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\dd1fdb5b5ee33661e34e1208ff1856cb_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2156
- C:\Users\Admin\AppData\Local\Temp\dd1fdb5b5ee33661e34e1208ff1856cb_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\dd1fdb5b5ee33661e34e1208ff1856cb_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3020

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\12CE.1B8

Filesize
912B

MD5
dec56c8365efc727ab8129b716dc48e4

SHA1
8211bb163d62dfca72c99180d83b1f707aa64512

SHA256
81c0fb5b61cce18f20066d03acf6574cd84ed85d5dae95c7b5e137fd417ca97b

SHA512
5b2131738d400813dd537ed4de85701b326775ce15d9bee56c6191af38e3dfe186e6ee7a684f954883aba0979f268cd0d77c25b2d5023fc1b05fdfb18fdb01b6

Download Submit
C:\Users\Admin\AppData\Roaming\12CE.1B8

Filesize
600B

MD5
bf52e96830c56f38ce1b6e28942b779c

SHA1
be0bd4b26bf3c3a396d146b3ac666cea2165d0be

SHA256
9cb129b12a0eee1ab7460a5012de85ca2cb7947af9868276e2535eb3ec98484d

SHA512
c21f5e1bcea2544ed5f0e8aadc3295c934574a3df31b287b8996c6c0ba59ad4355cc06a30245157e12474c1395ffdeff9efb132c18e2cfa529fe61240d5b2f9f

Download Submit
memory/2156-8-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2156-7-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2156-5-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2996-1-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2996-16-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2996-76-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2996-2-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2996-188-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/3020-79-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/3020-78-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/3020-81-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads