cycbot | 68702989be1ab3be2bcf8f86f1d92984125b53c151d805bbe099985da7c3b344

General

Target

JaffaCakes118_b8f2952dbac342dc96e37e467001a42e.exe
Size

171KB
MD5

b8f2952dbac342dc96e37e467001a42e
SHA1

a07999e20dfa01315a62eedae30a578e6eebba0c
SHA256

68702989be1ab3be2bcf8f86f1d92984125b53c151d805bbe099985da7c3b344
SHA512

78919a895c34a8d6eece4875cea98137fc90a2964e83534e07f9035e8a8475939a0cceb1dc04ac12bb86cc7a5409ed58973a93a6781c9dde286bf3cce7a75fb3
SSDEEP

3072:K6tMhwx8xxmOTeu20vZ8QtyFjIis8U4WGGsh+hvxZ8ZoaeXaoO+7SZnFTD:nMhwxEmOeulvftSjIiKvxuZx+aoX7SZn

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/2840-14-0x0000000000400000-0x000000000046D000-memory.dmp	family_cycbot
behavioral1/memory/2868-15-0x0000000000400000-0x000000000046D000-memory.dmp	family_cycbot
behavioral1/memory/2932-77-0x0000000000400000-0x000000000046D000-memory.dmp	family_cycbot
behavioral1/memory/2868-78-0x0000000000400000-0x000000000046D000-memory.dmp	family_cycbot
behavioral1/memory/2868-182-0x0000000000400000-0x000000000046D000-memory.dmp	family_cycbot

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\conhost.exe"	JaffaCakes118_b8f2952dbac342dc96e37e467001a42e.exe

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/2868-2-0x0000000000400000-0x000000000046D000-memory.dmp	upx
behavioral1/memory/2840-12-0x0000000000400000-0x000000000046D000-memory.dmp	upx
behavioral1/memory/2840-14-0x0000000000400000-0x000000000046D000-memory.dmp	upx
behavioral1/memory/2868-15-0x0000000000400000-0x000000000046D000-memory.dmp	upx
behavioral1/memory/2932-77-0x0000000000400000-0x000000000046D000-memory.dmp	upx
behavioral1/memory/2868-78-0x0000000000400000-0x000000000046D000-memory.dmp	upx
behavioral1/memory/2868-182-0x0000000000400000-0x000000000046D000-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_b8f2952dbac342dc96e37e467001a42e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b8f2952dbac342dc96e37e467001a42e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b8f2952dbac342dc96e37e467001a42e.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2868 wrote to memory of 2840	2868	JaffaCakes118_b8f2952dbac342dc96e37e467001a42e.exe	30
PID 2868 wrote to memory of 2840	2868	JaffaCakes118_b8f2952dbac342dc96e37e467001a42e.exe	30
PID 2868 wrote to memory of 2840	2868	JaffaCakes118_b8f2952dbac342dc96e37e467001a42e.exe	30
PID 2868 wrote to memory of 2840	2868	JaffaCakes118_b8f2952dbac342dc96e37e467001a42e.exe	30
PID 2868 wrote to memory of 2932	2868	JaffaCakes118_b8f2952dbac342dc96e37e467001a42e.exe	32
PID 2868 wrote to memory of 2932	2868	JaffaCakes118_b8f2952dbac342dc96e37e467001a42e.exe	32
PID 2868 wrote to memory of 2932	2868	JaffaCakes118_b8f2952dbac342dc96e37e467001a42e.exe	32
PID 2868 wrote to memory of 2932	2868	JaffaCakes118_b8f2952dbac342dc96e37e467001a42e.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b8f2952dbac342dc96e37e467001a42e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b8f2952dbac342dc96e37e467001a42e.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2868
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b8f2952dbac342dc96e37e467001a42e.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b8f2952dbac342dc96e37e467001a42e.exe startC:\Program Files (x86)\Internet Explorer\lvvm.exe%C:\Program Files (x86)\Internet Explorer
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2840
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b8f2952dbac342dc96e37e467001a42e.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b8f2952dbac342dc96e37e467001a42e.exe startC:\Users\Admin\AppData\Local\Temp\dwm.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2932

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\407C.0CD

Filesize
1KB

MD5
f92b5c9f4e0825108fb0345114bd3969

SHA1
abaf739bd006258d8d329774538383d379188ab5

SHA256
a269966a7468e94626ea6d8c287ab7f4c8fa1297bcaeabb8d0fa77cfb1dab32e

SHA512
9734b0f5fafed8c71009d8d55519db336459a342f698fb1a7c75c355ae8e096b9e3721dfa10da2a5dd2fb49e3665601e8c953ec91222c68534f25fe5fc2f7714

Download Submit
C:\Users\Admin\AppData\Roaming\407C.0CD

Filesize
600B

MD5
6145cc6e2c1799acf6f18775ee0abe18

SHA1
3fbdfddf083d103b2aa26fb58bce39d032640141

SHA256
71e35d493f581d05b8c089690774fae9c4fdaa13046f9bf83bb0c8438447de71

SHA512
0a515b567ab1450f7ec90bb985fd47b0482e341d416e5de62670df6fcac21c72f816d371324984335b62793162a5ddfabf64939d68e9f0d0d6a4f4bfbfff4f18

Download Submit
C:\Users\Admin\AppData\Roaming\407C.0CD

Filesize
996B

MD5
6c95a104d38e2c25711d4e6f8ced0261

SHA1
12add69b7141152187501acae9070b839af61973

SHA256
6961cf100989129ca5b3d7c672ff71141e4b2ab705b1285a08fbc5a7efb737dd

SHA512
65d8fb25b900a5c33b0ba46220fd49cb6f8f07c442e8d0ce31f0823b6f7be10182602d3acaed09a209ffe9b85237b2a9ed6dd4dafc4899baf591b172f406c2a9

Download Submit
memory/2840-12-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2840-14-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2868-1-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2868-2-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2868-15-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2868-78-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2868-182-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2932-76-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2932-77-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads