cycbot | 57ea452f46004366ebd8a2c47dcdbad93c6dcfb0d704ff6ec41e13f97b206258

General

Target

ff99e9716fc1b552aa546aa53f64e083_JaffaCakes118.exe
Size

166KB
MD5

ff99e9716fc1b552aa546aa53f64e083
SHA1

c5e50089a0645ef215ddc38b387858892db1033b
SHA256

57ea452f46004366ebd8a2c47dcdbad93c6dcfb0d704ff6ec41e13f97b206258
SHA512

ff6da5c2b5d36d51477ea5ce1e8ef5814695d83df42840c058f35db5c4ad6530c0cfd0dde23c30daf98ae79b214be83126111dc1374cbe6cc855bdcd444f1fbc
SSDEEP

3072:dLVnKCZk+IFAUY/8dWFJVcVvLqCv80KsDFCXlvdHArtX8S+TJ38eHxYIx2X7:dLdk+eAV/8d4AzqCvn9FCXlVgp0NHU

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/1244-7-0x0000000000400000-0x000000000043D000-memory.dmp	family_cycbot
behavioral1/memory/1864-14-0x0000000000400000-0x000000000043D000-memory.dmp	family_cycbot
behavioral1/memory/1864-78-0x0000000000400000-0x000000000043D000-memory.dmp	family_cycbot
behavioral1/memory/2984-81-0x0000000000400000-0x000000000043D000-memory.dmp	family_cycbot
behavioral1/memory/1864-171-0x0000000000400000-0x000000000043D000-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"	ff99e9716fc1b552aa546aa53f64e083_JaffaCakes118.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1864-2-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral1/memory/1244-6-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral1/memory/1244-7-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral1/memory/1864-14-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral1/memory/1864-78-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral1/memory/2984-80-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral1/memory/2984-81-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral1/memory/1864-171-0x0000000000400000-0x000000000043D000-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	ff99e9716fc1b552aa546aa53f64e083_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ff99e9716fc1b552aa546aa53f64e083_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ff99e9716fc1b552aa546aa53f64e083_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1864 wrote to memory of 1244	1864	ff99e9716fc1b552aa546aa53f64e083_JaffaCakes118.exe	30
PID 1864 wrote to memory of 1244	1864	ff99e9716fc1b552aa546aa53f64e083_JaffaCakes118.exe	30
PID 1864 wrote to memory of 1244	1864	ff99e9716fc1b552aa546aa53f64e083_JaffaCakes118.exe	30
PID 1864 wrote to memory of 1244	1864	ff99e9716fc1b552aa546aa53f64e083_JaffaCakes118.exe	30
PID 1864 wrote to memory of 2984	1864	ff99e9716fc1b552aa546aa53f64e083_JaffaCakes118.exe	33
PID 1864 wrote to memory of 2984	1864	ff99e9716fc1b552aa546aa53f64e083_JaffaCakes118.exe	33
PID 1864 wrote to memory of 2984	1864	ff99e9716fc1b552aa546aa53f64e083_JaffaCakes118.exe	33
PID 1864 wrote to memory of 2984	1864	ff99e9716fc1b552aa546aa53f64e083_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\ff99e9716fc1b552aa546aa53f64e083_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ff99e9716fc1b552aa546aa53f64e083_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1864
- C:\Users\Admin\AppData\Local\Temp\ff99e9716fc1b552aa546aa53f64e083_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\ff99e9716fc1b552aa546aa53f64e083_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1244
- C:\Users\Admin\AppData\Local\Temp\ff99e9716fc1b552aa546aa53f64e083_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\ff99e9716fc1b552aa546aa53f64e083_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2984

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\DAEC.EC3

Filesize
1KB

MD5
00f94e954362183e0ae590058dcf45c8

SHA1
d71c96a4a594d9050b15baa306d7bc6454866fdd

SHA256
3bcde8ef5ff20a19b0b16d3682f2a36e71d7cbae5af2bef842301ec1b79f063a

SHA512
b36b8cc1cf59a1601e84e18decbcf0e62d8a211895396157c21b8273951f411f4b457c35208aa86d8239eff03ab4daa50714bfd66e1a6fa45a945a9cdcfe7729

Download Submit
C:\Users\Admin\AppData\Roaming\DAEC.EC3

Filesize
600B

MD5
dfb9c0b188c470c62602abdca1ece92f

SHA1
0039da6e3a792cc723192dffd3cbf47133eb5d10

SHA256
fe4b38ae7b9ff17a52bcccd195c284b67f7d10e12405646c4cd3666b9735e6c2

SHA512
0f6a27844fe90d30a9d4da48ac3f0504dc2f60a6b70026c9d85e6d72d0076e8c1c7272d2351dbf3252af98253e95fa94f808c4d5e7360445af6fb8609fdb27ea

Download Submit
C:\Users\Admin\AppData\Roaming\DAEC.EC3

Filesize
996B

MD5
92376682e0c32044aca7b7d1d145c969

SHA1
88c2f8f8df074cbd1451ba36d721e8af4359cd21

SHA256
b90074c43ab9f1c6266130e7bf58c82145096b8ab827d42385ec6bdf0873abfe

SHA512
e0e8138bfddc1cb77ac9f2d6431c08c26a08e9a7a7f00a5d9aa3e8fec3b84bb0896c7e4c244fa1d48559ec677113a5d282d7091fcf93228eb54d6b69ac53dbfc

Download Submit
memory/1244-5-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1244-7-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1244-6-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1864-14-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1864-1-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1864-78-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1864-2-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1864-171-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2984-80-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2984-81-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads