cycbot | 4f0181c458529c7c39b1fdfae44dfcc66016a24775204506ef0d1f6b7406efb3

General

Target

JaffaCakes118_29075468a5d9b898cf73432f39095388.exe
Size

196KB
MD5

29075468a5d9b898cf73432f39095388
SHA1

b33d32759fa8c9f338f9063e0bf1abcc345bb188
SHA256

4f0181c458529c7c39b1fdfae44dfcc66016a24775204506ef0d1f6b7406efb3
SHA512

b0e304c5a6d1b2c2cc7f5c9450c3f8b74d431d79940e437897fd5acecafa8a4cb70d343a81ab29fd17f9aa5694fe7efa21e91853b979305e2a213e50b5ef6b67
SSDEEP

3072:gHnr/IOOuENp0zJyeqVRQ63ZvwzyN/z62pdLasPzePzQyc9fjRhJ9spzxwhkV9DK:gCMTqrtwzyN1esbIOKwm9

Score

10^/10

cycbot backdoor discovery 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 4 IoCs

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

resource	yara_rule
behavioral1/memory/2580-7-0x0000000000400000-0x0000000000449000-memory.dmp	family_cycbot
behavioral1/memory/2120-15-0x0000000000400000-0x0000000000449000-memory.dmp	family_cycbot
behavioral1/memory/2100-88-0x0000000000400000-0x0000000000449000-memory.dmp	family_cycbot
behavioral1/memory/2120-193-0x0000000000400000-0x0000000000449000-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

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2120-2-0x0000000000400000-0x0000000000449000-memory.dmp	upx
behavioral1/memory/2580-5-0x0000000000400000-0x0000000000449000-memory.dmp	upx
behavioral1/memory/2580-7-0x0000000000400000-0x0000000000449000-memory.dmp	upx
behavioral1/memory/2120-15-0x0000000000400000-0x0000000000449000-memory.dmp	upx
behavioral1/memory/2100-88-0x0000000000400000-0x0000000000449000-memory.dmp	upx
behavioral1/memory/2120-193-0x0000000000400000-0x0000000000449000-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_29075468a5d9b898cf73432f39095388.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_29075468a5d9b898cf73432f39095388.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_29075468a5d9b898cf73432f39095388.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2120 wrote to memory of 2580	2120	JaffaCakes118_29075468a5d9b898cf73432f39095388.exe	30
PID 2120 wrote to memory of 2580	2120	JaffaCakes118_29075468a5d9b898cf73432f39095388.exe	30
PID 2120 wrote to memory of 2580	2120	JaffaCakes118_29075468a5d9b898cf73432f39095388.exe	30
PID 2120 wrote to memory of 2580	2120	JaffaCakes118_29075468a5d9b898cf73432f39095388.exe	30
PID 2120 wrote to memory of 2100	2120	JaffaCakes118_29075468a5d9b898cf73432f39095388.exe	33
PID 2120 wrote to memory of 2100	2120	JaffaCakes118_29075468a5d9b898cf73432f39095388.exe	33
PID 2120 wrote to memory of 2100	2120	JaffaCakes118_29075468a5d9b898cf73432f39095388.exe	33
PID 2120 wrote to memory of 2100	2120	JaffaCakes118_29075468a5d9b898cf73432f39095388.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_29075468a5d9b898cf73432f39095388.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_29075468a5d9b898cf73432f39095388.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2120
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_29075468a5d9b898cf73432f39095388.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_29075468a5d9b898cf73432f39095388.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2580
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_29075468a5d9b898cf73432f39095388.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_29075468a5d9b898cf73432f39095388.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2100

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\B8C6.0DC

Filesize
1KB

MD5
726c4025148889e98f428c194edbbb36

SHA1
20e81bf91d97a46b6235b89b2d3246a6692041f8

SHA256
38e558bde3aed1c47fd33ff602762c053aaa2f3f07fc5493d693f3174f8ad92c

SHA512
c2098c1cc17c2f8f800ade658a7ef3d3c42747aa43384200d42a1cf8a4ea42e7225f8a00a92d8dfbe51244c3425344f09904df2f4a8b62f1a623614cf9af0eed

Download Submit
C:\Users\Admin\AppData\Roaming\B8C6.0DC

Filesize
600B

MD5
0a2c734da1882175f36795301efa1825

SHA1
74ae402769449ed9fbb34f775b6b87c323b3c3da

SHA256
900f5e48dfa5cc9bab2a606d1c10a3ebb7391aa4eb785d6eb1cc1e22b1eeb45b

SHA512
5f8ddd907433fb7bd375e25b1624f5d1efe1443ee5e7f10de0130ffb4bd5e5a49022501b3aaac480f170f86f49135f1135190fbb760181eef580bca6b9c50f11

Download Submit
C:\Users\Admin\AppData\Roaming\B8C6.0DC

Filesize
996B

MD5
83866853d1a4df8b550584d4b37a5535

SHA1
be250347c2b9e887c8839eab2ac7dc19433b584c

SHA256
cb2ed85a95de2faa996f68dc24fd28d7ca4ecc31117a9cc4716eae2752b917d8

SHA512
14ba64fc3f6f67beb0c3b92c51893c0ceb9c49ac1b4e240681e73e4d37e2f07c8165411d3eaeaabcb6e2f69f068fb92fd9093de481f50d6b45f1f6ef54b97b20

Download Submit
memory/2100-88-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download
memory/2120-1-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download
memory/2120-2-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download
memory/2120-15-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download
memory/2120-193-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download
memory/2580-5-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download
memory/2580-7-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download

Analysis

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