cycbot | 7d5225a6e3e427e897554049dc19d7bb75cc66dc331f81e89a5a7c918be24f09

General

Target

JaffaCakes118_b761729a6e9d43f8536520b3c6123215.exe
Size

173KB
MD5

b761729a6e9d43f8536520b3c6123215
SHA1

dec925319beba90293c6d69dff12cc8b1ec9a0af
SHA256

7d5225a6e3e427e897554049dc19d7bb75cc66dc331f81e89a5a7c918be24f09
SHA512

b516fe660ffa144674dabf3290bf26973efe464ca8f7e18328c8258f308770ca4905e2da38017a0272c6b8dbb0cfa0ae929ed6d14b181d91af2c262a1941613d
SSDEEP

3072:/RGczuwKVTC+ntw5Xor5qju2rlAp0qr9:/RG7VTCea5Xg5qjuCAN

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/2736-10-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral1/memory/2900-15-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral1/memory/2900-74-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral1/memory/2312-77-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral1/memory/2900-174-0x0000000000400000-0x0000000000444000-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"	JaffaCakes118_b761729a6e9d43f8536520b3c6123215.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2900-2-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2736-8-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2736-10-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2900-15-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2900-74-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2312-77-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2900-174-0x0000000000400000-0x0000000000444000-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_b761729a6e9d43f8536520b3c6123215.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b761729a6e9d43f8536520b3c6123215.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b761729a6e9d43f8536520b3c6123215.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2900 wrote to memory of 2736	2900	JaffaCakes118_b761729a6e9d43f8536520b3c6123215.exe	30
PID 2900 wrote to memory of 2736	2900	JaffaCakes118_b761729a6e9d43f8536520b3c6123215.exe	30
PID 2900 wrote to memory of 2736	2900	JaffaCakes118_b761729a6e9d43f8536520b3c6123215.exe	30
PID 2900 wrote to memory of 2736	2900	JaffaCakes118_b761729a6e9d43f8536520b3c6123215.exe	30
PID 2900 wrote to memory of 2312	2900	JaffaCakes118_b761729a6e9d43f8536520b3c6123215.exe	32
PID 2900 wrote to memory of 2312	2900	JaffaCakes118_b761729a6e9d43f8536520b3c6123215.exe	32
PID 2900 wrote to memory of 2312	2900	JaffaCakes118_b761729a6e9d43f8536520b3c6123215.exe	32
PID 2900 wrote to memory of 2312	2900	JaffaCakes118_b761729a6e9d43f8536520b3c6123215.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b761729a6e9d43f8536520b3c6123215.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b761729a6e9d43f8536520b3c6123215.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2900
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b761729a6e9d43f8536520b3c6123215.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b761729a6e9d43f8536520b3c6123215.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2736
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b761729a6e9d43f8536520b3c6123215.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b761729a6e9d43f8536520b3c6123215.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2312

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\16FA.B07

Filesize
600B

MD5
e57ab4b167ea98bd21ad2c7cb443427d

SHA1
ab22b525187ee6dc464f42301d7be606739a1661

SHA256
4526c3070be33e13511fadaf5fe1a044b479a3b031a34fd7702d08d6f1c73d8d

SHA512
314e92b937e72b981872e2a31eb27142956b0840badb313ecd05464e70b8e92938b74d21e0e91ec54411441306c9486146adcc21b8434101f52562b4a48cc90f

Download Submit
C:\Users\Admin\AppData\Roaming\16FA.B07

Filesize
1KB

MD5
f0b78cd9beb06343c7351728ce37c5b9

SHA1
ff169207fd210f99ec6b7b624589e855cd3084d2

SHA256
e167f327ced07095752d119131436d39e4bebfa6628b8311ff5c8790130584ab

SHA512
5c2bbc68dcf8bc8fa6b239a988a18d0afa95dace043511366a45c58eb2ee189fa7cc3022d25d81f14e708f36e894e093cb2e344e849e98692796838b6e33dafe

Download Submit
C:\Users\Admin\AppData\Roaming\16FA.B07

Filesize
996B

MD5
cf56e87bca784aaf2500c65d3d2a3fde

SHA1
85ef903e061f114df4733441b1b20ca95e2f007b

SHA256
d7e5c3222cf8361cfe698c1ff1a88f004618247c258492fea18b5cafef96c7cb

SHA512
4850e474d7f02028a93b9a00c5d9cff787504fd95b108b2039812af4b0e4b3b8f34532f579059e05a4556c046bf29f90edcefa8d4b0589fa02bf71b578909228

Download Submit
memory/2312-77-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2736-8-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2736-10-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2900-1-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2900-2-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2900-15-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2900-74-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2900-174-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads