cycbot | 7b0e5642727a1df949d626a625b679b3c1acba1e12e188e4075bf19170a20fed

General

Target

e2db13ffabda7b98f7db88c055f1ed2a_JaffaCakes118.exe
Size

174KB
MD5

e2db13ffabda7b98f7db88c055f1ed2a
SHA1

eaeec9fffa97e1e6ef70f143d7d33d713dab6ff7
SHA256

7b0e5642727a1df949d626a625b679b3c1acba1e12e188e4075bf19170a20fed
SHA512

dd78c7955737efed511d03d769ca6eb3f242a60c0dd9913b910702c1cfd1382d766e0cbd1da207779553848ab722cf1e9967a90598549093eaf9708a3e865952
SSDEEP

3072:cN8KEFR+oANzCsw6063ag9ScrHe5pR1ohJxfe/NHj9c6:cAR+oAkE4gEue5v1og/p9c

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 5 IoCs

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

resource	yara_rule
behavioral1/memory/2080-14-0x0000000000400000-0x000000000048C000-memory.dmp	family_cycbot
behavioral1/memory/2120-15-0x0000000000400000-0x000000000048C000-memory.dmp	family_cycbot
behavioral1/memory/1480-80-0x0000000000400000-0x000000000048C000-memory.dmp	family_cycbot
behavioral1/memory/2120-81-0x0000000000400000-0x000000000048C000-memory.dmp	family_cycbot
behavioral1/memory/2120-147-0x0000000000400000-0x000000000048C000-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-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\dwm.exe"	e2db13ffabda7b98f7db88c055f1ed2a_JaffaCakes118.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/2120-2-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral1/memory/2080-12-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral1/memory/2080-14-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral1/memory/2120-15-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral1/memory/1480-80-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral1/memory/2120-81-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral1/memory/2120-147-0x0000000000400000-0x000000000048C000-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	e2db13ffabda7b98f7db88c055f1ed2a_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e2db13ffabda7b98f7db88c055f1ed2a_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e2db13ffabda7b98f7db88c055f1ed2a_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2120 wrote to memory of 2080	2120	e2db13ffabda7b98f7db88c055f1ed2a_JaffaCakes118.exe	31
PID 2120 wrote to memory of 2080	2120	e2db13ffabda7b98f7db88c055f1ed2a_JaffaCakes118.exe	31
PID 2120 wrote to memory of 2080	2120	e2db13ffabda7b98f7db88c055f1ed2a_JaffaCakes118.exe	31
PID 2120 wrote to memory of 2080	2120	e2db13ffabda7b98f7db88c055f1ed2a_JaffaCakes118.exe	31
PID 2120 wrote to memory of 1480	2120	e2db13ffabda7b98f7db88c055f1ed2a_JaffaCakes118.exe	33
PID 2120 wrote to memory of 1480	2120	e2db13ffabda7b98f7db88c055f1ed2a_JaffaCakes118.exe	33
PID 2120 wrote to memory of 1480	2120	e2db13ffabda7b98f7db88c055f1ed2a_JaffaCakes118.exe	33
PID 2120 wrote to memory of 1480	2120	e2db13ffabda7b98f7db88c055f1ed2a_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\e2db13ffabda7b98f7db88c055f1ed2a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e2db13ffabda7b98f7db88c055f1ed2a_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2120
- C:\Users\Admin\AppData\Local\Temp\e2db13ffabda7b98f7db88c055f1ed2a_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e2db13ffabda7b98f7db88c055f1ed2a_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2080
- C:\Users\Admin\AppData\Local\Temp\e2db13ffabda7b98f7db88c055f1ed2a_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e2db13ffabda7b98f7db88c055f1ed2a_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1480

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\37E5.2AD

Filesize
1KB

MD5
387056ebba57bfa729cd93e79fe06d8b

SHA1
f1962ffda5a6490d7d26b0fd61a3f18c53239773

SHA256
eeb0a52b232a567dd7bdc1979f682b208cb17cbfa2e22ca08cb84f452eb772c5

SHA512
a4d767393b9805fbafde13334e63a55034004ffa995dc37df90f5c53d78a8cbea57789aad555241f2959b4e496ea39f4988a5bbccca26ef7ee4b203527fc7314

Download Submit
C:\Users\Admin\AppData\Roaming\37E5.2AD

Filesize
600B

MD5
bdde0b173b20b67dbeb6604107e1afbe

SHA1
84fc8b6e0d5db36de48044ebe2c02a73832e53a9

SHA256
ca1c74381d49240fb2bf1b7f5532bf821e9bee5788362126de5fbd0e908f7eec

SHA512
9cd3bdde3fbbdad4ead0ac349095f68e307c8161e8fe65544c4a71b98707d075d94ad4882e86c6bca17693d35044333ee6b5a5544b6a52dc9c2008b6f936474b

Download Submit
C:\Users\Admin\AppData\Roaming\37E5.2AD

Filesize
996B

MD5
977e647016f9d6acbab4021e826ef110

SHA1
bb3e7f471bf1b07530c07416eaa0ed9106fdc189

SHA256
a13106bde51122e698f75f4d11b12c43620fbd721c3851dd32ffe61b4cf93c47

SHA512
de58affd63caf5e05c51c2299df617d0b6332d52d9ebdf90b82e630d485d3bd019d04f1c42205864e185e117e9be3b35e4d2f8d723fb9e0120e235b7c6f794bc

Download Submit
memory/1480-80-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/2080-12-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/2080-14-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/2120-1-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/2120-2-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/2120-15-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/2120-81-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/2120-147-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads