cycbot | b5196f1a6850fcb8e9cd53c781a5833aa6b8b6b94f63af4bd93404a83eb46f8a

General

Target

d3bc0aced11fcf63e0b6fe19a2aeaa2a_JaffaCakes118.exe
Size

180KB
MD5

d3bc0aced11fcf63e0b6fe19a2aeaa2a
SHA1

cd10a0bc51c3b511c8c2d60eb62e4a7e76f0a333
SHA256

b5196f1a6850fcb8e9cd53c781a5833aa6b8b6b94f63af4bd93404a83eb46f8a
SHA512

c1f012142785464ffe32545487a3c8f19e694229fe3578091a9b3ae9058913df7748031f756b09d750dc8cedaa290da3b6b62b033213acc871fab1ec89143e82
SSDEEP

3072:FqDztifjcS0sagmzaYvCtvd0u7a/VJo6EuzOfXJovuqt5T3l:F9jl0ZgOaYqtvKeAw6DOfJi7

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 6 IoCs

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

resource	yara_rule
behavioral2/memory/4784-14-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/2512-15-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/2512-83-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/2472-87-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/2512-190-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/2512-192-0x0000000000400000-0x000000000048D000-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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\dwm.exe"	d3bc0aced11fcf63e0b6fe19a2aeaa2a_JaffaCakes118.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2512-2-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/4784-12-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/4784-14-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/2512-15-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/2512-83-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/2472-85-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/2472-87-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/2512-190-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/2512-192-0x0000000000400000-0x000000000048D000-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	d3bc0aced11fcf63e0b6fe19a2aeaa2a_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d3bc0aced11fcf63e0b6fe19a2aeaa2a_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d3bc0aced11fcf63e0b6fe19a2aeaa2a_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2512 wrote to memory of 4784	2512	d3bc0aced11fcf63e0b6fe19a2aeaa2a_JaffaCakes118.exe	83
PID 2512 wrote to memory of 4784	2512	d3bc0aced11fcf63e0b6fe19a2aeaa2a_JaffaCakes118.exe	83
PID 2512 wrote to memory of 4784	2512	d3bc0aced11fcf63e0b6fe19a2aeaa2a_JaffaCakes118.exe	83
PID 2512 wrote to memory of 2472	2512	d3bc0aced11fcf63e0b6fe19a2aeaa2a_JaffaCakes118.exe	84
PID 2512 wrote to memory of 2472	2512	d3bc0aced11fcf63e0b6fe19a2aeaa2a_JaffaCakes118.exe	84
PID 2512 wrote to memory of 2472	2512	d3bc0aced11fcf63e0b6fe19a2aeaa2a_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\d3bc0aced11fcf63e0b6fe19a2aeaa2a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d3bc0aced11fcf63e0b6fe19a2aeaa2a_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2512
- C:\Users\Admin\AppData\Local\Temp\d3bc0aced11fcf63e0b6fe19a2aeaa2a_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\d3bc0aced11fcf63e0b6fe19a2aeaa2a_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4784
- C:\Users\Admin\AppData\Local\Temp\d3bc0aced11fcf63e0b6fe19a2aeaa2a_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\d3bc0aced11fcf63e0b6fe19a2aeaa2a_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2472

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\1E16.05C

Filesize
1KB

MD5
1f7f11a54a0c6391801749232847455b

SHA1
57d1c1b87cee6835d95f8aee0717bbc948463fc9

SHA256
e5415687ecfe84e2d9f120cf63352a4186163989c93b079ef9761d6fec739181

SHA512
948cb22c1f9aab0345720510cca01c4dde3596b4d85f368a91fa4ef5b572c0bdb0986c64249006f925d4402da7c5394b0f35136a67a9925d40547b1c62b85a1b

Download Submit
C:\Users\Admin\AppData\Roaming\1E16.05C

Filesize
600B

MD5
c0ec62a867b77a758f464764c111d58b

SHA1
4a83e45d0f78940a35906c11c39a3f89d82b3dba

SHA256
500d8ee24cd701f66c2328ccf9ddf75a0c5f25023ea4e4069761dada422a866e

SHA512
ef06b0136bfc044fe06fe68447dea5f2e9c14eb6125fa250559ee32864f2224d470d05708be1053a8a2076b57c2e8c8bbdb76235b493f700760b6b40465ac153

Download Submit
memory/2472-85-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2472-87-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2512-1-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2512-2-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2512-15-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2512-83-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2512-190-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2512-192-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/4784-12-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/4784-14-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads