cycbot | d257b65ceb5cafaf948a503b4e83fcb88310d4515a22e3456d3cdefa8f8ec116

General

Target

JaffaCakes118_747cfb60eecc5d1a99169775c0a68fe5.exe
Size

170KB
MD5

747cfb60eecc5d1a99169775c0a68fe5
SHA1

8dee3a7ec9e415c28ff4130156917743155e4e89
SHA256

d257b65ceb5cafaf948a503b4e83fcb88310d4515a22e3456d3cdefa8f8ec116
SHA512

9358f7ab3cdefc6d7e15c359cdb30bbe383b7c033e771fa8f2fc1cdded1482ffe6d646362e4e09a9e7506579756f3d3a2ec99511427be01e501930772bb26e1e
SSDEEP

3072:y1y3JzflKd9vce7XgpgP7/npFDb7jpfpRAeflfPyo3RpG7k09:W6J7SNwpEDDbBhqMpG7l9

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 6 IoCs

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

resource	yara_rule
behavioral1/memory/2320-5-0x0000000000400000-0x000000000043E000-memory.dmp	family_cycbot
behavioral1/memory/868-12-0x0000000000400000-0x000000000043E000-memory.dmp	family_cycbot
behavioral1/memory/868-74-0x0000000000400000-0x000000000043E000-memory.dmp	family_cycbot
behavioral1/memory/2612-77-0x0000000000400000-0x000000000043E000-memory.dmp	family_cycbot
behavioral1/memory/868-121-0x0000000000400000-0x000000000043E000-memory.dmp	family_cycbot
behavioral1/memory/868-128-0x0000000000400000-0x000000000043E000-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_747cfb60eecc5d1a99169775c0a68fe5.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/868-2-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/2320-5-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/868-12-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/868-74-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/2612-76-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/2612-77-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/868-121-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/868-128-0x0000000000400000-0x000000000043E000-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_747cfb60eecc5d1a99169775c0a68fe5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_747cfb60eecc5d1a99169775c0a68fe5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_747cfb60eecc5d1a99169775c0a68fe5.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 868 wrote to memory of 2320	868	JaffaCakes118_747cfb60eecc5d1a99169775c0a68fe5.exe	31
PID 868 wrote to memory of 2320	868	JaffaCakes118_747cfb60eecc5d1a99169775c0a68fe5.exe	31
PID 868 wrote to memory of 2320	868	JaffaCakes118_747cfb60eecc5d1a99169775c0a68fe5.exe	31
PID 868 wrote to memory of 2320	868	JaffaCakes118_747cfb60eecc5d1a99169775c0a68fe5.exe	31
PID 868 wrote to memory of 2612	868	JaffaCakes118_747cfb60eecc5d1a99169775c0a68fe5.exe	33
PID 868 wrote to memory of 2612	868	JaffaCakes118_747cfb60eecc5d1a99169775c0a68fe5.exe	33
PID 868 wrote to memory of 2612	868	JaffaCakes118_747cfb60eecc5d1a99169775c0a68fe5.exe	33
PID 868 wrote to memory of 2612	868	JaffaCakes118_747cfb60eecc5d1a99169775c0a68fe5.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_747cfb60eecc5d1a99169775c0a68fe5.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_747cfb60eecc5d1a99169775c0a68fe5.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:868
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_747cfb60eecc5d1a99169775c0a68fe5.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_747cfb60eecc5d1a99169775c0a68fe5.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2320
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_747cfb60eecc5d1a99169775c0a68fe5.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_747cfb60eecc5d1a99169775c0a68fe5.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2612

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\92A8.D25

Filesize
1KB

MD5
e37a9c6ce1e941f0bd43f9c315b3572b

SHA1
93a1359affe9e3c1d667730dae2514bfe158a6b7

SHA256
d3087cddf9638edbf1c775df28cebb65574413d32c64f2c74409e060f53d8f46

SHA512
c0962ea1b8810566531ac19f00f36e65645cf8c403ebd1176ec959467eb6d8f04b5affc7055f568d1de32b418cec6c0aee263dd745fd35c314aae2a5a5e46e21

Download Submit
C:\Users\Admin\AppData\Roaming\92A8.D25

Filesize
600B

MD5
e740af937f8ddd793165863c0e17c5f5

SHA1
529331aac250e400a42ff76ebadb2db7c89578c9

SHA256
5257b1eb1e77f0d37e3a79b6f0c2f367e1e659d51e973e26cd02bf611faca9a2

SHA512
e8a98645aa9884a8541e22b5dbec56983501454812b7b6f03bf8698ac6058d5b13976dc096317cb387427a9924f07ae509bf194a6cd8b93030ae506f1e5e0223

Download Submit
C:\Users\Admin\AppData\Roaming\92A8.D25

Filesize
996B

MD5
cb466ce0b72899cd972d1e4de84ea3f3

SHA1
baa1a621cb0a29f6cee369404aa80e01254f9855

SHA256
714480001e32f7f43e3841e9010bf8176a68b7221caa1dc5c25a298fe3fdd7a0

SHA512
e3ad3403c0e762bf0cad7a5d0dded4ba6c33364a2f994d89cfa96b06e19e9069688f5e25791038498ff547f944a916ca0dfa4a8ee5473321181bf92f49e5b9d2

Download Submit
memory/868-1-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/868-2-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/868-12-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/868-74-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/868-121-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/868-128-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2320-5-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2612-76-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2612-77-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads