cycbot | 66a81de263d39c6e6c435df1b9ed54bbd7567fb949fef98c3d071f9f171e960e

General

Target

JaffaCakes118_20460809f2608eacd737b850a0e44410.exe
Size

186KB
MD5

20460809f2608eacd737b850a0e44410
SHA1

6744a7798c23c3deb2df6922556cb4e519986dfa
SHA256

66a81de263d39c6e6c435df1b9ed54bbd7567fb949fef98c3d071f9f171e960e
SHA512

10e64282441f652f97b584c299957a820a25e797e104cac0b3f719708912adecd8441db8dcaee557b175bdec2c099e30d7201cbfac2bf198f33c73c7e4385bf4
SSDEEP

3072:cXqjA7PrysZG9h9cBO3klmMU5+RHGKPS3MNlJ1mfjNgHC0q8Tkm4:jjiTys+h9V3QU5+1mrNp0lTF

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/1972-13-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2672-14-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2608-71-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2672-72-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2672-178-0x0000000000400000-0x0000000000442000-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"	JaffaCakes118_20460809f2608eacd737b850a0e44410.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2672-2-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1972-12-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1972-13-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2672-14-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2608-71-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2672-72-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2672-178-0x0000000000400000-0x0000000000442000-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	JaffaCakes118_20460809f2608eacd737b850a0e44410.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_20460809f2608eacd737b850a0e44410.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_20460809f2608eacd737b850a0e44410.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2672 wrote to memory of 1972	2672	JaffaCakes118_20460809f2608eacd737b850a0e44410.exe	30
PID 2672 wrote to memory of 1972	2672	JaffaCakes118_20460809f2608eacd737b850a0e44410.exe	30
PID 2672 wrote to memory of 1972	2672	JaffaCakes118_20460809f2608eacd737b850a0e44410.exe	30
PID 2672 wrote to memory of 1972	2672	JaffaCakes118_20460809f2608eacd737b850a0e44410.exe	30
PID 2672 wrote to memory of 2608	2672	JaffaCakes118_20460809f2608eacd737b850a0e44410.exe	33
PID 2672 wrote to memory of 2608	2672	JaffaCakes118_20460809f2608eacd737b850a0e44410.exe	33
PID 2672 wrote to memory of 2608	2672	JaffaCakes118_20460809f2608eacd737b850a0e44410.exe	33
PID 2672 wrote to memory of 2608	2672	JaffaCakes118_20460809f2608eacd737b850a0e44410.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_20460809f2608eacd737b850a0e44410.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_20460809f2608eacd737b850a0e44410.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2672
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_20460809f2608eacd737b850a0e44410.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_20460809f2608eacd737b850a0e44410.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1972
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_20460809f2608eacd737b850a0e44410.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_20460809f2608eacd737b850a0e44410.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2608

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\A5AC.4EC

Filesize
1KB

MD5
63fba2b3747b846013d4238b03c88078

SHA1
9cab838c8805006c631b831c50c8bdc44f28f39c

SHA256
38e5206c06f3fc8cbb5611eebb0cef45aa0f05fdd4fbc106bb58fe8cd0832ad0

SHA512
3683ce752798145dac954496dafd4547472a5b1e5789d1c41f359c690e78eec912eb277d672b6349301a454ea55f374867cb89523b8e2c58d9122c222d2d6671

Download Submit
C:\Users\Admin\AppData\Roaming\A5AC.4EC

Filesize
600B

MD5
81aa34a82b44d8f88e346f4c13593dfb

SHA1
cc362641eae1956d7fb42f227d65b7c68c6d97c6

SHA256
326ab217229b38beaa2c2827e5301d0bc0a58cee87d741740ecdad9d79c8b983

SHA512
7b243fdb6c911e8c5b7fe5ae2d58b7a816415f2767f62b9deefae571de220f16d49c17a59f7ab4487f98ee9d75b4d9e0630bca75c27c71b73dcb7445cc2625db

Download Submit
C:\Users\Admin\AppData\Roaming\A5AC.4EC

Filesize
996B

MD5
b1b0c005f29d0e7ce6618af97bc8792a

SHA1
7d7b1604a477a7c9898c87202903c046b10d3ff6

SHA256
00b2edd47f75480186338daada385274e19f5be6c80708cd58e452b7775267ee

SHA512
606620a58b9cc0ca150b0ca5178d3ddd4b2aa8f3f003752fac7c1bc92c96fbdec914062d515eadd74227a6deaa430ee78105d5ca5f4a96642b072ec21cb6b06f

Download Submit
memory/1972-12-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1972-13-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2608-71-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2672-1-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2672-2-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2672-14-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2672-72-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2672-178-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads