cycbot | c2118429fe56fdd6dd1bbec6188f17607dca4bac34a9f261f80c207d0b998f6f

General

Target

f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe
Size

173KB
MD5

f347997834ea746d2d2de22e7dd7987d
SHA1

e418225e34a856e2f2908eb4578cb3f29ff8f94c
SHA256

c2118429fe56fdd6dd1bbec6188f17607dca4bac34a9f261f80c207d0b998f6f
SHA512

33b0992c70f4d9d2db69a7f304c880143890372f91fa846bd261615724c2de9dbab284dda86ab43f06f15f536a18ff021ceb77f289bad79ecc27352c5e8232b8
SSDEEP

3072:CvfRJ+R8DVZfg4WbXqSFlK2Z76tTlrySOVn+7hjXjRD3d:wRM4VFzWH0cWpwuXF

Score

10^/10

cycbot backdoor discovery persistence rat 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
behavioral2/memory/2020-10-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/32-15-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/2916-85-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/32-86-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/32-185-0x0000000000400000-0x000000000048D000-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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\dwm.exe"	f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/32-2-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/2020-8-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/2020-10-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/32-15-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/2916-83-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/2916-85-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/32-86-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/32-185-0x0000000000400000-0x000000000048D000-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	f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 32 wrote to memory of 2020	32	f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe	83
PID 32 wrote to memory of 2020	32	f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe	83
PID 32 wrote to memory of 2020	32	f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe	83
PID 32 wrote to memory of 2916	32	f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe	84
PID 32 wrote to memory of 2916	32	f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe	84
PID 32 wrote to memory of 2916	32	f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:32
- C:\Users\Admin\AppData\Local\Temp\f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2020
- C:\Users\Admin\AppData\Local\Temp\f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2916

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

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\0CE5.0CA

Filesize
1KB

MD5
5b93e098ca1f736b1b2c434475145343

SHA1
09d6207007251eefd6405a48271f57ca09816031

SHA256
247c07fb4c8f8812b4ccd448d0eddc02ec6a39b818be89b05b5a92395e00e728

SHA512
c81d2f03816e3416745e1b1e9ee2bbeac6ad1945a11c1730f9771fed2622f4b8ba4b0d4b8a139caa99d478b6a1cc22cb6cd3eaa6d7289dd5e4e2350e1bb334d0

Download Submit
C:\Users\Admin\AppData\Roaming\0CE5.0CA

Filesize
600B

MD5
0c9413ae087e3dab38e04bbd837bbabb

SHA1
6d867a970c80a6eef1c66d80a2b2e5df52a9cf3d

SHA256
22c24740cb3c097fbc84d29da85b5380abc00ba20ec5e12b9ccf806b82e98201

SHA512
38dd42f3c0b22be0d595b10f6b6a909ea0955cb0c9edbaa176fa844871101eb92e8473f89214cb3a4e1c10e94bc0f1e9f7b3646bcc39cf5d4ca45b96ec9d79c8

Download Submit
C:\Users\Admin\AppData\Roaming\0CE5.0CA

Filesize
996B

MD5
e0d0dd06decf0662f5149bdf284ae673

SHA1
3727c87937e641de451a12be9bb1f30d80160a1e

SHA256
870fcd3166615275cb7ddfd36374610e8229c510b8d7776e62f62e0a08b5227e

SHA512
861f3c062dc6d3c3c88f6edcbb94eea2355f671ece51df93379140c62d2680fbad9234476280b3d734e3fda28f130b6c47194058383a76fd48dd1b305334b867

Download Submit
memory/32-1-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/32-2-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/32-15-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/32-86-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/32-185-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2020-8-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2020-10-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2916-83-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2916-85-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads