cycbot | 9574097d7ecbe7c06ea8303500c9aee662756dbe4011b1daba9020a09b62020f

General

Target

JaffaCakes118_370c4e9fb5d9cc81fb90606f89ce69d2.exe
Size

170KB
MD5

370c4e9fb5d9cc81fb90606f89ce69d2
SHA1

4736ccb37749a4ae3706fc97e43c5e6d3107c288
SHA256

9574097d7ecbe7c06ea8303500c9aee662756dbe4011b1daba9020a09b62020f
SHA512

6d2de3cedc5eb25d83972a0887ca646cbc60a7a2b6faa8c1046cf2d8afacf8f0d9ec346d3b5c4aeffec9420d8de509e8718c1ceb7f7883826b078ae47525d1ae
SSDEEP

3072:gKmdRkOtj+fhSgb8clWnmhaLi6FrdKCm7XRepDB4f+Wir+c0bNa:gK0JyfhBitRECIXYP4GWiic

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/2452-15-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/2336-16-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral1/memory/2336-17-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/2336-82-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/2144-85-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/2336-188-0x0000000000400000-0x0000000000491000-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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\89510\\49232.exe"	JaffaCakes118_370c4e9fb5d9cc81fb90606f89ce69d2.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/2452-15-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2452-13-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2336-2-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2336-16-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/2336-17-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2336-82-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2144-84-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2144-85-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2336-188-0x0000000000400000-0x0000000000491000-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_370c4e9fb5d9cc81fb90606f89ce69d2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_370c4e9fb5d9cc81fb90606f89ce69d2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_370c4e9fb5d9cc81fb90606f89ce69d2.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2336 wrote to memory of 2452	2336	JaffaCakes118_370c4e9fb5d9cc81fb90606f89ce69d2.exe	30
PID 2336 wrote to memory of 2452	2336	JaffaCakes118_370c4e9fb5d9cc81fb90606f89ce69d2.exe	30
PID 2336 wrote to memory of 2452	2336	JaffaCakes118_370c4e9fb5d9cc81fb90606f89ce69d2.exe	30
PID 2336 wrote to memory of 2452	2336	JaffaCakes118_370c4e9fb5d9cc81fb90606f89ce69d2.exe	30
PID 2336 wrote to memory of 2144	2336	JaffaCakes118_370c4e9fb5d9cc81fb90606f89ce69d2.exe	32
PID 2336 wrote to memory of 2144	2336	JaffaCakes118_370c4e9fb5d9cc81fb90606f89ce69d2.exe	32
PID 2336 wrote to memory of 2144	2336	JaffaCakes118_370c4e9fb5d9cc81fb90606f89ce69d2.exe	32
PID 2336 wrote to memory of 2144	2336	JaffaCakes118_370c4e9fb5d9cc81fb90606f89ce69d2.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_370c4e9fb5d9cc81fb90606f89ce69d2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_370c4e9fb5d9cc81fb90606f89ce69d2.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2336
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_370c4e9fb5d9cc81fb90606f89ce69d2.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_370c4e9fb5d9cc81fb90606f89ce69d2.exe startC:\Program Files (x86)\LP\3278\D5E.exe%C:\Program Files (x86)\LP\3278
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2452
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_370c4e9fb5d9cc81fb90606f89ce69d2.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_370c4e9fb5d9cc81fb90606f89ce69d2.exe startC:\Program Files (x86)\10B10\lvvm.exe%C:\Program Files (x86)\10B10
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2144

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

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Downloads

C:\Users\Admin\AppData\Roaming\89510\0B10.951

Filesize
1KB

MD5
e90d181c0ee850bca21ec012488c0118

SHA1
baccf81bf9d8af9dbfbd8212ccad105f7f3c0d27

SHA256
f38fcf2a3cd1820b76b5fee9c6804a4cff275999fb44db7aaae842cfd9ad158e

SHA512
11b240a3c419e03989c72543c9b37d5e883f26ada36ac8b75506f004e3aea96fa489230365ee5c4def110408c2de7e7c5c16b7b02c8499b7529ba308c60600fa

Download Submit
C:\Users\Admin\AppData\Roaming\89510\0B10.951

Filesize
600B

MD5
8fd1451d5fb7ce0ee25725e93c757e3e

SHA1
06faf11f7cc396e7292e0995741588a198170606

SHA256
630c12440b6eb3e84ea356db7f534e47c8f37dfb8cf2c2f3c41ef00243d9c1d8

SHA512
624bc2d64558e0b578546f22a03d49ce3d8319d8bda0ee04484e17205132ceff852dbd5c41280df4929ec67aabb339d411ae55179b72e455feebf9dd4e53e53a

Download Submit
C:\Users\Admin\AppData\Roaming\89510\0B10.951

Filesize
996B

MD5
9791e996c2afb6fa9d96de02da9c54dd

SHA1
06b868cb1c541481c78edbb3bb1a8fb4baaae211

SHA256
797e5832a5748608e93e5848d76d0247d8d1a34b202c7b65d9688234a9e693a9

SHA512
07a5435dbac72a97bbefb1f0dc4cfaf6f07f5378370a1420438d6caa85cd44eae86494c676fc4369bac444070d2957a14c2894e3a72c50e33e893323177a168d

Download Submit
memory/2144-85-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2144-84-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2336-2-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2336-17-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2336-16-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2336-82-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2336-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2336-188-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2452-15-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2452-12-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2452-13-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads