cycbot | 4c25c6f1f41248a690fbb6978bd048bda7ad963a5017a8306004b1c48e667fd6

General

Target

JaffaCakes118_e93c5ffb04f679ca0e5dae95c34f9879.exe
Size

172KB
MD5

e93c5ffb04f679ca0e5dae95c34f9879
SHA1

d36cb926a0e673a6ab4b77ce175b18c33817eeb9
SHA256

4c25c6f1f41248a690fbb6978bd048bda7ad963a5017a8306004b1c48e667fd6
SHA512

cda1f5cf9647e071be947ca1d2117e0442ebac6d8644a9f285ded29499c439c69bf55277b48a0d24b62f60e14c1fbb0c6cba845f2f810cfb41911706f412ff71
SSDEEP

3072:j+USykMgdEWjgQ6pOoWJMP5/fnOxiYQ4DxD4FNKJYefg5:Sby3gNM4oaMP5uJtNsfKJ

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 5 IoCs

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

resource	yara_rule
behavioral1/memory/1880-13-0x0000000000400000-0x000000000046C000-memory.dmp	family_cycbot
behavioral1/memory/1880-15-0x0000000000400000-0x000000000046C000-memory.dmp	family_cycbot
behavioral1/memory/1860-16-0x0000000000400000-0x000000000046C000-memory.dmp	family_cycbot
behavioral1/memory/3008-91-0x0000000000400000-0x000000000046C000-memory.dmp	family_cycbot
behavioral1/memory/1860-161-0x0000000000400000-0x000000000046C000-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 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1860-2-0x0000000000400000-0x000000000046C000-memory.dmp	upx
behavioral1/memory/1880-13-0x0000000000400000-0x000000000046C000-memory.dmp	upx
behavioral1/memory/1880-15-0x0000000000400000-0x000000000046C000-memory.dmp	upx
behavioral1/memory/1860-16-0x0000000000400000-0x000000000046C000-memory.dmp	upx
behavioral1/memory/3008-89-0x0000000000400000-0x000000000046C000-memory.dmp	upx
behavioral1/memory/3008-91-0x0000000000400000-0x000000000046C000-memory.dmp	upx
behavioral1/memory/1860-161-0x0000000000400000-0x000000000046C000-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_e93c5ffb04f679ca0e5dae95c34f9879.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_e93c5ffb04f679ca0e5dae95c34f9879.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_e93c5ffb04f679ca0e5dae95c34f9879.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1860 wrote to memory of 1880	1860	JaffaCakes118_e93c5ffb04f679ca0e5dae95c34f9879.exe	28
PID 1860 wrote to memory of 1880	1860	JaffaCakes118_e93c5ffb04f679ca0e5dae95c34f9879.exe	28
PID 1860 wrote to memory of 1880	1860	JaffaCakes118_e93c5ffb04f679ca0e5dae95c34f9879.exe	28
PID 1860 wrote to memory of 1880	1860	JaffaCakes118_e93c5ffb04f679ca0e5dae95c34f9879.exe	28
PID 1860 wrote to memory of 3008	1860	JaffaCakes118_e93c5ffb04f679ca0e5dae95c34f9879.exe	30
PID 1860 wrote to memory of 3008	1860	JaffaCakes118_e93c5ffb04f679ca0e5dae95c34f9879.exe	30
PID 1860 wrote to memory of 3008	1860	JaffaCakes118_e93c5ffb04f679ca0e5dae95c34f9879.exe	30
PID 1860 wrote to memory of 3008	1860	JaffaCakes118_e93c5ffb04f679ca0e5dae95c34f9879.exe	30

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e93c5ffb04f679ca0e5dae95c34f9879.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e93c5ffb04f679ca0e5dae95c34f9879.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1860
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e93c5ffb04f679ca0e5dae95c34f9879.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e93c5ffb04f679ca0e5dae95c34f9879.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1880
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e93c5ffb04f679ca0e5dae95c34f9879.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e93c5ffb04f679ca0e5dae95c34f9879.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3008

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\FDC4.540

Filesize
1KB

MD5
5fd80f2de2d5317d6e33b3feb6b536fa

SHA1
9f571ac54c459db079f5ba8edd32dfa2e0fcad7a

SHA256
7bef143658a9b0f096885e0e6335a3e1ecb8e8ae17d5cf4c2d5585506c0052cf

SHA512
af1c43e5ac42fbbcc952251ae39b82d99c29b8f33b4cc81324821128ba84e75b4203ce0bf85e9a3fba7c900803cd9915bb85db0bd144c776e68c524c139f089c

Download Submit
C:\Users\Admin\AppData\Roaming\FDC4.540

Filesize
600B

MD5
e61a75c27d07346f33108f474c4ca672

SHA1
66f3119169d49282ac76ab8e90d21f73cba18805

SHA256
cf8157ac966f0a990c18f670bd3aca21af8d8f74c6609396b891c10497776b4d

SHA512
fefb7ecce3ebf7ed13625926cda2ee446b5c9cf07d3bc43962f47839432b86b4456d06b9421e06fb6c072eb07c74b66fc0fe0fc51a9423bb84cdeec999d5847d

Download Submit
C:\Users\Admin\AppData\Roaming\FDC4.540

Filesize
996B

MD5
2ecb2da9b2473a0b25fc54346456eeb9

SHA1
928389338ced0bbd820a69fb400aa73f6adc15de

SHA256
b58d12141325e52c6d143474a1d9684997d0c03352f4a4f59fa1c10624bf6a8f

SHA512
b90956b74f2d5fb482a5aea955f805d8199453c450df33c169a78b170b6d3f201f98f9d14ba274167cbc3cbc9bbbe1294dfe6db94a5d4231c0ef43b1211efa43

Download Submit
memory/1860-1-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/1860-2-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/1860-16-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/1860-161-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/1880-12-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/1880-13-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/1880-15-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/3008-89-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/3008-91-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download

Analysis

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