cycbot | efa5abd15732b45333258fe0e804c31d2ef46b8acb50aac02cc9f9d368e6c9dd

General

Target

JaffaCakes118_77817ce954183a9b49965b28e8161fa1.exe
Size

167KB
MD5

77817ce954183a9b49965b28e8161fa1
SHA1

181b5addf0b7744aeefa189c095c4d575c5a7534
SHA256

efa5abd15732b45333258fe0e804c31d2ef46b8acb50aac02cc9f9d368e6c9dd
SHA512

729ffc324baa5b1b53ea6e627c542d7c802e2fa0d0424cba858d4a0b1263f083add8ef923203fd9a54fcdbb0d4c1760550ac5a4c1fbc18644d03b08513036452
SSDEEP

3072:5tAmsPkZOvVNpb2jlfSb2Kqu8pCR45sgVqVhQC+gaxJOtga7cZHZtBUEq3Xntz:5kPkZOtbClO3pXR45sgVKQC+gEg4yE4X

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/3008-13-0x0000000000400000-0x0000000000446000-memory.dmp	family_cycbot
behavioral1/memory/2912-14-0x0000000000400000-0x0000000000446000-memory.dmp	family_cycbot
behavioral1/memory/2912-76-0x0000000000400000-0x0000000000446000-memory.dmp	family_cycbot
behavioral1/memory/2260-80-0x0000000000400000-0x0000000000446000-memory.dmp	family_cycbot
behavioral1/memory/2912-171-0x0000000000400000-0x0000000000446000-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_77817ce954183a9b49965b28e8161fa1.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2912-2-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/3008-12-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/3008-13-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/2912-14-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/2912-76-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/2260-78-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/2260-80-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/2912-171-0x0000000000400000-0x0000000000446000-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_77817ce954183a9b49965b28e8161fa1.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2912 wrote to memory of 3008	2912	JaffaCakes118_77817ce954183a9b49965b28e8161fa1.exe	30
PID 2912 wrote to memory of 3008	2912	JaffaCakes118_77817ce954183a9b49965b28e8161fa1.exe	30
PID 2912 wrote to memory of 3008	2912	JaffaCakes118_77817ce954183a9b49965b28e8161fa1.exe	30
PID 2912 wrote to memory of 3008	2912	JaffaCakes118_77817ce954183a9b49965b28e8161fa1.exe	30
PID 2912 wrote to memory of 2260	2912	JaffaCakes118_77817ce954183a9b49965b28e8161fa1.exe	32
PID 2912 wrote to memory of 2260	2912	JaffaCakes118_77817ce954183a9b49965b28e8161fa1.exe	32
PID 2912 wrote to memory of 2260	2912	JaffaCakes118_77817ce954183a9b49965b28e8161fa1.exe	32
PID 2912 wrote to memory of 2260	2912	JaffaCakes118_77817ce954183a9b49965b28e8161fa1.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77817ce954183a9b49965b28e8161fa1.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77817ce954183a9b49965b28e8161fa1.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2912
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77817ce954183a9b49965b28e8161fa1.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77817ce954183a9b49965b28e8161fa1.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  PID:3008
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77817ce954183a9b49965b28e8161fa1.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77817ce954183a9b49965b28e8161fa1.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  PID:2260

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\56E8.A71

Filesize
600B

MD5
340c0d2ce031f38519d208f2ca05a412

SHA1
1c5042b1fee0098d9021dd306080a139c1528d6c

SHA256
885cd7abb7825fa1458e2362d94ea0eece52cf7ee49d0c33080cdd3fb253aa5c

SHA512
ca899172b728e742aec77f3ab297acec8779de84f8473ce27e44dac2d8eb2f25d1062916d0bb202ea485c095e6b733dc6c522f27a2c4b531fe8784a1f8e19ec1

Download Submit
memory/2260-78-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2260-80-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2912-1-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2912-2-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2912-14-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2912-76-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2912-171-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/3008-12-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/3008-13-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads