cycbot | 615c81c523e0d149c6028933b738ce73cac4635c89c628abf5bb3dd9ea7b0acd

General

Target

JaffaCakes118_583263a359b914b176d69a88b3646dbf.exe
Size

160KB
MD5

583263a359b914b176d69a88b3646dbf
SHA1

d89e452870806ce5b381c0383bcc21fdca21f2b3
SHA256

615c81c523e0d149c6028933b738ce73cac4635c89c628abf5bb3dd9ea7b0acd
SHA512

d89e6dad243b0d6be37f98405070ac67283ce517a6f9d9e47697fbbf8a63cd24d38671baa26ce8b9f91419775f1697f64e9648b522da4571f3af3c0720fbc354
SSDEEP

3072:XZos/wh/aG0cV/2EfaSV6UjZkbPhcslzQKzH7lre:ms/wh/ayVBJVGF5QKv

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/2988-15-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/1772-16-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral2/memory/1772-17-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/3716-121-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/1772-122-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/1772-300-0x0000000000400000-0x0000000000491000-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-1-5-21-4003209913-3868522715-854928974-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\868DC\\F98B7.exe"	JaffaCakes118_583263a359b914b176d69a88b3646dbf.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1772-3-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2988-14-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2988-15-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/1772-16-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral2/memory/1772-17-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/3716-119-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/3716-121-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/1772-122-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/1772-300-0x0000000000400000-0x0000000000491000-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_583263a359b914b176d69a88b3646dbf.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1772 wrote to memory of 2988	1772	JaffaCakes118_583263a359b914b176d69a88b3646dbf.exe	85
PID 1772 wrote to memory of 2988	1772	JaffaCakes118_583263a359b914b176d69a88b3646dbf.exe	85
PID 1772 wrote to memory of 2988	1772	JaffaCakes118_583263a359b914b176d69a88b3646dbf.exe	85
PID 1772 wrote to memory of 3716	1772	JaffaCakes118_583263a359b914b176d69a88b3646dbf.exe	86
PID 1772 wrote to memory of 3716	1772	JaffaCakes118_583263a359b914b176d69a88b3646dbf.exe	86
PID 1772 wrote to memory of 3716	1772	JaffaCakes118_583263a359b914b176d69a88b3646dbf.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_583263a359b914b176d69a88b3646dbf.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_583263a359b914b176d69a88b3646dbf.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1772
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_583263a359b914b176d69a88b3646dbf.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_583263a359b914b176d69a88b3646dbf.exe startC:\Program Files (x86)\LP\B758\83B.exe%C:\Program Files (x86)\LP\B758
  2⤵
  PID:2988
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_583263a359b914b176d69a88b3646dbf.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_583263a359b914b176d69a88b3646dbf.exe startC:\Program Files (x86)\DC289\lvvm.exe%C:\Program Files (x86)\DC289
  2⤵
  PID:3716

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\868DC\C289.68D

Filesize
996B

MD5
48e1b2f1bf39bb626a3651b64095f024

SHA1
48dbea60c10c3b17c4daba915cfdf5336abb9466

SHA256
e6736b612b2c69448f1823f98fe601ae2c4be740feb4c15c26de625aa72bc92d

SHA512
70e29b05331df56999491f19f498ae2a6a4d372562e0afa5cc60b507c627db1c94a8d995f619c949c59af8b444ca9e61381c24c988862b2f7aac13584d7d555e

Download Submit
C:\Users\Admin\AppData\Roaming\868DC\C289.68D

Filesize
600B

MD5
dc88d9090d4414233e689e9b1650dac0

SHA1
b61584a493058b7a55e0afed285b0be8a6dc9842

SHA256
b00c0a054a13aff7059a8c6e167335d7f7d8284d41f872eb88b1dbfd7478727a

SHA512
f0fab6289d3104d93e99f53dc3a5e67b990eec8e05446ad3316561ffb829fe2a1f51211f5e66ccfcc5642f0a8ffaa3bb1dba2ce1955f850243deae815d235fb5

Download Submit
C:\Users\Admin\AppData\Roaming\868DC\C289.68D

Filesize
1KB

MD5
aa7acb89b375688e330d8ab52f0e9076

SHA1
26c05967716e3d0f2f4e9334270d68499775321b

SHA256
789c38d0dbcc5d44c185b49280f511106659bae533abade8b32501e1474f1aeb

SHA512
4003a99d90e519bff3119ece1dc1b4e59f5664843a6e08158b9fc8d94a43d6240a9a0bc71dfc24ad3c630006d770ac500b4fc63f61738ed3d20abbed7835578c

Download Submit
memory/1772-122-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/1772-2-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/1772-3-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/1772-0-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/1772-300-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/1772-16-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/1772-17-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2988-14-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2988-15-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3716-121-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3716-119-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads