cycbot | 9ecc032c0aaaaaf78c4b6830e9803051446926ec2aa7334b7abbdf5aaf243ed5

General

Target

f0f76b1844f447ce36bafe8de5cf2121_JaffaCakes118.exe
Size

156KB
MD5

f0f76b1844f447ce36bafe8de5cf2121
SHA1

2b45ff21e23448f6bee31054ac91a93cc275e590
SHA256

9ecc032c0aaaaaf78c4b6830e9803051446926ec2aa7334b7abbdf5aaf243ed5
SHA512

2f07168e7160cedb71759edccf8aaa1e4e464806affb565aa18f96ec1aa477178d6e283a20299cb624c78b381b23bb5f76307a87bbee2ab80d361614161e6f7c
SSDEEP

3072:zSz/w/NmaAuOLDAJpu2bf/Ma5lyVf6beeL857rfM00:2I/NmHF8pFf/MaUV0eeL85Hn0

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/2160-6-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2076-14-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1712-86-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2076-87-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2076-200-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\conhost = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\conhost.exe"	f0f76b1844f447ce36bafe8de5cf2121_JaffaCakes118.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2076-1-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2160-6-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2160-5-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2076-14-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1712-84-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1712-86-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2076-87-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2076-200-0x0000000000400000-0x0000000000442000-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	f0f76b1844f447ce36bafe8de5cf2121_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f0f76b1844f447ce36bafe8de5cf2121_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f0f76b1844f447ce36bafe8de5cf2121_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2076 wrote to memory of 2160	2076	f0f76b1844f447ce36bafe8de5cf2121_JaffaCakes118.exe	30
PID 2076 wrote to memory of 2160	2076	f0f76b1844f447ce36bafe8de5cf2121_JaffaCakes118.exe	30
PID 2076 wrote to memory of 2160	2076	f0f76b1844f447ce36bafe8de5cf2121_JaffaCakes118.exe	30
PID 2076 wrote to memory of 2160	2076	f0f76b1844f447ce36bafe8de5cf2121_JaffaCakes118.exe	30
PID 2076 wrote to memory of 1712	2076	f0f76b1844f447ce36bafe8de5cf2121_JaffaCakes118.exe	33
PID 2076 wrote to memory of 1712	2076	f0f76b1844f447ce36bafe8de5cf2121_JaffaCakes118.exe	33
PID 2076 wrote to memory of 1712	2076	f0f76b1844f447ce36bafe8de5cf2121_JaffaCakes118.exe	33
PID 2076 wrote to memory of 1712	2076	f0f76b1844f447ce36bafe8de5cf2121_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\f0f76b1844f447ce36bafe8de5cf2121_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f0f76b1844f447ce36bafe8de5cf2121_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2076
- C:\Users\Admin\AppData\Local\Temp\f0f76b1844f447ce36bafe8de5cf2121_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f0f76b1844f447ce36bafe8de5cf2121_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2160
- C:\Users\Admin\AppData\Local\Temp\f0f76b1844f447ce36bafe8de5cf2121_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f0f76b1844f447ce36bafe8de5cf2121_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1712

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

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\BCBD.88C

Filesize
600B

MD5
018cc0b76386cc8498356fe8f97431fc

SHA1
549a9bf9d6b6c1a8aaba1aff0b03652b046e5cdf

SHA256
4deb4d126544676049926e747dc2b372188b16010013eff0d072923e93534d9a

SHA512
7cf4b06042776482b9ada8d51db0d76a47641ce45671489dec43f3dd87e894c5524f281b2288e7dde96a6ed3756d9b69ade5719235affe2023bfd214ea47de0d

Download Submit
C:\Users\Admin\AppData\Roaming\BCBD.88C

Filesize
1KB

MD5
786b89df910491d0f18ab66668bf4012

SHA1
70b10e738b522d6599a74f637f05045eb27c4287

SHA256
4adb73998a520942d4d9140a52a85dffa7867eb3356e24e909732c46480bbef7

SHA512
6968ba7c8fe65f33e3240e0cfa51a035dd338c17a2aa2b9c995d3aedaa69bd924ae557f2dd48046f44c398d92d3c70c3e24b76392dacca28d740eeae1dd3cdec

Download Submit
C:\Users\Admin\AppData\Roaming\BCBD.88C

Filesize
996B

MD5
b180c338ed991ba94b62e6b7a098f37b

SHA1
6530c725d998bd3719c27f8bfd912de8de885c35

SHA256
243d296226e22f9f008af241be9e16701bcf1e2ac5c0589397e8d0556ced8523

SHA512
533ccaf937da94c61900045d3d9275943181dfcca2181994e1da8be3635ce0b12737d591ef89e8dedd6d979fe375561c5e8910d234cb299eba99a54887d35951

Download Submit
memory/1712-84-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1712-86-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2076-1-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2076-14-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2076-87-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2076-200-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2160-6-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2160-5-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2160-4-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads