cycbot | ff59fd39f343ff759158ea1edd02ba2a068ecf0b5a458813c6cd581c239e17c0

General

Target

JaffaCakes118_68eb8aae37c33d27b7736657ce62e960.exe
Size

169KB
MD5

68eb8aae37c33d27b7736657ce62e960
SHA1

d25336493fa499b08f876a3152248d5323fa4ec3
SHA256

ff59fd39f343ff759158ea1edd02ba2a068ecf0b5a458813c6cd581c239e17c0
SHA512

141378a593d771e8a0056d32249c1eccca7b54c0a4ad8c158ee1f8069d01609375bef90ae4b67b2f6057fa53ba38c97c3180b548346179233a2e35b8c26337b0
SSDEEP

3072:yDVJI8SxZxU+b2EhfhfI8PTjYZ12Ze2ueo8CdQ6cuDI+WR+W2aXroUMKp+iGKpM:yDnIJZxU+hhfhA8PoZGueZC3D279MKtZ

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/1760-14-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/1576-15-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/1576-16-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral1/memory/1008-75-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/1576-76-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/1576-172-0x0000000000400000-0x0000000000491000-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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\13506\\E4023.exe"	JaffaCakes118_68eb8aae37c33d27b7736657ce62e960.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 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1576-2-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/1760-14-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/1576-15-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/1576-16-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/1008-75-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/1576-76-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/1576-172-0x0000000000400000-0x0000000000491000-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	JaffaCakes118_68eb8aae37c33d27b7736657ce62e960.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_68eb8aae37c33d27b7736657ce62e960.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_68eb8aae37c33d27b7736657ce62e960.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1576 wrote to memory of 1760	1576	JaffaCakes118_68eb8aae37c33d27b7736657ce62e960.exe	31
PID 1576 wrote to memory of 1760	1576	JaffaCakes118_68eb8aae37c33d27b7736657ce62e960.exe	31
PID 1576 wrote to memory of 1760	1576	JaffaCakes118_68eb8aae37c33d27b7736657ce62e960.exe	31
PID 1576 wrote to memory of 1760	1576	JaffaCakes118_68eb8aae37c33d27b7736657ce62e960.exe	31
PID 1576 wrote to memory of 1008	1576	JaffaCakes118_68eb8aae37c33d27b7736657ce62e960.exe	33
PID 1576 wrote to memory of 1008	1576	JaffaCakes118_68eb8aae37c33d27b7736657ce62e960.exe	33
PID 1576 wrote to memory of 1008	1576	JaffaCakes118_68eb8aae37c33d27b7736657ce62e960.exe	33
PID 1576 wrote to memory of 1008	1576	JaffaCakes118_68eb8aae37c33d27b7736657ce62e960.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_68eb8aae37c33d27b7736657ce62e960.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_68eb8aae37c33d27b7736657ce62e960.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1576
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_68eb8aae37c33d27b7736657ce62e960.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_68eb8aae37c33d27b7736657ce62e960.exe startC:\Program Files (x86)\LP\2311\933.exe%C:\Program Files (x86)\LP\2311
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1760
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_68eb8aae37c33d27b7736657ce62e960.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_68eb8aae37c33d27b7736657ce62e960.exe startC:\Program Files (x86)\06194\lvvm.exe%C:\Program Files (x86)\06194
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1008

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\13506\6194.350

Filesize
1KB

MD5
ec85ff703f27a2942e4a6ded52335d9f

SHA1
619dad43137076351b7adb254f71da268f328f0e

SHA256
c65e0f9d318a60a4ce4387534a8e52d4018d3f4a3c5e57875642d79de7747405

SHA512
030f5ba65df347d64acd68e63c0fb4a94831ea72f6f109073054948884e59b28e5dace4419c8ec432e603fce05cb8dd9402f24dfa4380e0220ad8c9ca7573482

Download Submit
C:\Users\Admin\AppData\Roaming\13506\6194.350

Filesize
600B

MD5
6c5b94956a8e30def3828414e0d84e9e

SHA1
412e2bc805dbd9f21ab11b825a5bb67f7f2b2166

SHA256
ce9146cf1adfa49cdaf3880e81d335e6a820cb4b131bd9fed68ebb29cc25600f

SHA512
602546b58c6ff698a98c4c38cdb13c62f2f9219227bc9044f8a9c7467ece5356e1c4a08711e80a7c91a43a6e523e4fd175be7c155d2c1632572d6e5499f5169b

Download Submit
C:\Users\Admin\AppData\Roaming\13506\6194.350

Filesize
996B

MD5
cade83d9261a87d25d4b8577f27bd524

SHA1
485dc0e10df5ab6a827a94e85cca2a2f427c4c6a

SHA256
f38dc6655722648f19ad8557a03acd69a1c4a4f118b67b4e748dce621c2b7ff0

SHA512
e06719eb1acaba2c9dcd91656ec48e43d5378ae534a8b8e3677510e503d39166460be36ee88d62758fdc7e66c4f8047fd031cfebe120ad61925aa05f37638049

Download Submit
memory/1008-75-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/1008-73-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/1576-76-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/1576-16-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/1576-15-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/1576-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/1576-2-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/1576-172-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/1760-14-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/1760-12-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads