cycbot | cf969a744501e16e29c04bafa3a052c3caa7334a24add77bb1570c3de727965f

General

Target

JaffaCakes118_650707800418b6cf533d5c5413d89380.exe
Size

164KB
MD5

650707800418b6cf533d5c5413d89380
SHA1

308fd86caeea50796d144a44fb8f6b5ff4fecfbf
SHA256

cf969a744501e16e29c04bafa3a052c3caa7334a24add77bb1570c3de727965f
SHA512

4a3645fac2d46961abf641c1e77334740feffd7c386ac150589f3f35870ba9e3689624871f0804a73bb3dd1dc466946cce92966c03cf167a6881c968ab244830
SSDEEP

3072:SSfOD2Yuc7YaGuQP6h6SFMr6hhh7MJCsbEvfcp39k5W4Cb4SRRATPWkqpEal:TmqrDaGuQP6UzrCzAJVbE43cW4CbfRv4

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 6 IoCs

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

resource	yara_rule
behavioral1/memory/2764-16-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/2552-17-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral1/memory/2552-18-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/2552-119-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/836-123-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/2552-309-0x0000000000400000-0x0000000000490000-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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\6E54C\\EC9AF.exe"	JaffaCakes118_650707800418b6cf533d5c5413d89380.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/2552-4-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2764-14-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2764-16-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2552-17-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/2552-18-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2552-119-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/836-122-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/836-123-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2552-309-0x0000000000400000-0x0000000000490000-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_650707800418b6cf533d5c5413d89380.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2552 wrote to memory of 2764	2552	JaffaCakes118_650707800418b6cf533d5c5413d89380.exe	28
PID 2552 wrote to memory of 2764	2552	JaffaCakes118_650707800418b6cf533d5c5413d89380.exe	28
PID 2552 wrote to memory of 2764	2552	JaffaCakes118_650707800418b6cf533d5c5413d89380.exe	28
PID 2552 wrote to memory of 2764	2552	JaffaCakes118_650707800418b6cf533d5c5413d89380.exe	28
PID 2552 wrote to memory of 836	2552	JaffaCakes118_650707800418b6cf533d5c5413d89380.exe	30
PID 2552 wrote to memory of 836	2552	JaffaCakes118_650707800418b6cf533d5c5413d89380.exe	30
PID 2552 wrote to memory of 836	2552	JaffaCakes118_650707800418b6cf533d5c5413d89380.exe	30
PID 2552 wrote to memory of 836	2552	JaffaCakes118_650707800418b6cf533d5c5413d89380.exe	30

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_650707800418b6cf533d5c5413d89380.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_650707800418b6cf533d5c5413d89380.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2552
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_650707800418b6cf533d5c5413d89380.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_650707800418b6cf533d5c5413d89380.exe startC:\Program Files (x86)\LP\AF06\82B.exe%C:\Program Files (x86)\LP\AF06
  2⤵
  PID:2764
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_650707800418b6cf533d5c5413d89380.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_650707800418b6cf533d5c5413d89380.exe startC:\Program Files (x86)\4CCF5\lvvm.exe%C:\Program Files (x86)\4CCF5
  2⤵
  PID:836

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\6E54C\CCF5.E54

Filesize
996B

MD5
155d5bb8b746222651dcd809d3120245

SHA1
272f751b773138c635d06d48aa89603344bc629b

SHA256
e0fb21e7b1d4695b337bcd2f2af0d0f3e4d43b2d06c72f1d77e1a9f19bf23a38

SHA512
a01fb511893089a748eabdadde80f93be72ee70ded4c901e78bac30ea9df1a7ade97f0072e4737cd6591ed2195d072dc33fb20713254430e8f9eee264d432547

Download Submit
C:\Users\Admin\AppData\Roaming\6E54C\CCF5.E54

Filesize
600B

MD5
1b3608fe2dad06ac9a1f0f4088fc8115

SHA1
edffc0e483133593fdde52b7b41a149dfa5db390

SHA256
3c39a252b185fad271f2e88addfd80cf68fa3f2576ab2cf3273125cef792a255

SHA512
9d79295e6a1258604c7eb4e5deb90282a9e3ebc7adca075756508e31d15210190cf1448f7c77d3d51cde4c9b5fec1720b0725303f2b3c31169bb446a143b7596

Download Submit
C:\Users\Admin\AppData\Roaming\6E54C\CCF5.E54

Filesize
1KB

MD5
525c5679ba5d49bdd979150d72fce9fa

SHA1
1b5b3ab70e0b999e29a3041bb1e47d01b988b2bf

SHA256
b99d3b35bc4351a88bf287a416c2c85d1aecd57321aa745d3e5a4fbc3f9b466e

SHA512
a669f55df381ddc37a10329bc06cc0ae536b7c62368417ce45959b17238bd184b2cd97c1758f46fb3f0ebda86efe712c42972171ba5a2912734f5f8fe3f605c0

Download Submit
memory/836-123-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/836-122-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2552-18-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2552-0-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2552-17-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2552-119-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2552-4-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2552-2-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2552-309-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2764-16-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2764-14-0x0000000000400000-0x0000000000490000-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