cycbot | 3e00a59f3c489f8f0030f312edec6c7324158227b55c0ab23a37d3515e6eb861

General

Target

JaffaCakes118_5dc07529222fbbaa09b22ca5686992d9.exe
Size

167KB
MD5

5dc07529222fbbaa09b22ca5686992d9
SHA1

55f444cc846d3dec13606b5efd75684127388e52
SHA256

3e00a59f3c489f8f0030f312edec6c7324158227b55c0ab23a37d3515e6eb861
SHA512

5fb6f6497c06fa45f17cf4dcff392d0986798b721a86c298668b32aceebe3eccbb09f3da83a038eeaae38862ed4605d1d56ff62d38890139aee1c14f7d2e1f9e
SSDEEP

3072:WT3agtQ2WNRHFggFgpRvTGQXb85vjX95URu1lWtvfdAZlQXuW0H:WrWPRSp9XbCjX95URLvlAZlQXuW

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/4556-15-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/3836-16-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/3836-17-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/3416-82-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/3836-151-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/3836-189-0x0000000000400000-0x0000000000490000-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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\4375D\\932DF.exe"	JaffaCakes118_5dc07529222fbbaa09b22ca5686992d9.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3836-2-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4556-13-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4556-15-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/3836-16-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/3836-17-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/3416-80-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/3416-82-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/3836-151-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/3836-189-0x0000000000400000-0x0000000000490000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 1 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_5dc07529222fbbaa09b22ca5686992d9.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3836 wrote to memory of 4556	3836	JaffaCakes118_5dc07529222fbbaa09b22ca5686992d9.exe	82
PID 3836 wrote to memory of 4556	3836	JaffaCakes118_5dc07529222fbbaa09b22ca5686992d9.exe	82
PID 3836 wrote to memory of 4556	3836	JaffaCakes118_5dc07529222fbbaa09b22ca5686992d9.exe	82
PID 3836 wrote to memory of 3416	3836	JaffaCakes118_5dc07529222fbbaa09b22ca5686992d9.exe	87
PID 3836 wrote to memory of 3416	3836	JaffaCakes118_5dc07529222fbbaa09b22ca5686992d9.exe	87
PID 3836 wrote to memory of 3416	3836	JaffaCakes118_5dc07529222fbbaa09b22ca5686992d9.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5dc07529222fbbaa09b22ca5686992d9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5dc07529222fbbaa09b22ca5686992d9.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3836
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5dc07529222fbbaa09b22ca5686992d9.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5dc07529222fbbaa09b22ca5686992d9.exe startC:\Program Files (x86)\LP\DF64\5CE.exe%C:\Program Files (x86)\LP\DF64
  2⤵
  PID:4556
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5dc07529222fbbaa09b22ca5686992d9.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5dc07529222fbbaa09b22ca5686992d9.exe startC:\Program Files (x86)\5DAB7\lvvm.exe%C:\Program Files (x86)\5DAB7
  2⤵
  PID:3416

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\4375D\DAB7.375

Filesize
1KB

MD5
42a04184fefdad158c318079e6729c2e

SHA1
e14da10629076c528aabb359ba03c0853407fafb

SHA256
8d8dba1221e4ad06990066b6320e7560d2c21bc949d846a69081f3205c7548eb

SHA512
df2490093af3b2d98fa932e8cc6a6099f846491f2a56b980e81d691bf6da0695400f6d58cfd4ea7167b1a267c25d366e9df9043db4669a72b8f648aefb550d32

Download Submit
C:\Users\Admin\AppData\Roaming\4375D\DAB7.375

Filesize
600B

MD5
a2413d387c8e9ce34d79124d99a675d3

SHA1
b62e82cf8f6b3865819df687d433352da770646c

SHA256
0b60567d1ccfcba09d1a62d653965f860d059ceb23b0a4c4f0d94b88e00b89db

SHA512
d4297f1f8b0ac325a51fd39446d06288bc7cbca4461b05693c9c6dd7dc0dd1b7884557b4192b27e2a4e9b4967653814211e4781dcf476ec5d4b1993cb0b1c812

Download Submit
C:\Users\Admin\AppData\Roaming\4375D\DAB7.375

Filesize
996B

MD5
45b9d198ca586eea89a45cbc85cb978e

SHA1
d432ab2a5191af3a124bf0e8d27c512201848b86

SHA256
06657860564a3057c2125d78d82e646a840a84b76661363b298c575ddc1ea2c5

SHA512
bbcf584f50fa69f507a82f68be72ead2190d8c9f08cc7ebf8d551f55345a879a1bcb936c69eb2b92456f0f9dcb191a93364a0fe671e5833d5520fe0f3718e067

Download Submit
memory/3416-82-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3416-80-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3836-17-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3836-1-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/3836-16-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/3836-151-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3836-2-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3836-189-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4556-15-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4556-12-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4556-13-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads