cycbot | b858f237f53a099f46436192c2a9e2511398f0c965614bd5e508263468727a80

General

Target

96fab9b48d7e94db87ead77e961086f3_JaffaCakes118.exe
Size

175KB
MD5

96fab9b48d7e94db87ead77e961086f3
SHA1

135fafb971d5a6e540d698a6804b7dbebab8c1d5
SHA256

b858f237f53a099f46436192c2a9e2511398f0c965614bd5e508263468727a80
SHA512

fe243073586dbd5e02c42b5ba715d085400ae579b87cf973b1e26641d171ab84971e7ec49871bbeaae77513c7a8fa8c7b897193888eab28c1eac8c23778e6b8d
SSDEEP

3072:jVnhoJa7IA920l8h1wPyna9DQ/1ASVQsWwuPFcLwY5Q3z0zO6B:jXuZA7yhyP3Q/lQs9EFCUCO6B

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 7 IoCs

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

Processes:

resource	yara_rule
behavioral1/memory/2604-15-0x0000000000400000-0x000000000048C000-memory.dmp	family_cycbot
behavioral1/memory/2604-14-0x0000000000400000-0x000000000048C000-memory.dmp	family_cycbot
behavioral1/memory/1752-16-0x0000000000400000-0x000000000048C000-memory.dmp	family_cycbot
behavioral1/memory/1752-89-0x0000000000400000-0x000000000048C000-memory.dmp	family_cycbot
behavioral1/memory/2888-92-0x0000000000400000-0x000000000048C000-memory.dmp	family_cycbot
behavioral1/memory/1752-160-0x0000000000400000-0x000000000048C000-memory.dmp	family_cycbot
behavioral1/memory/1752-161-0x0000000000400000-0x000000000048C000-memory.dmp	family_cycbot

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

96fab9b48d7e94db87ead77e961086f3_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\dwm.exe"	96fab9b48d7e94db87ead77e961086f3_JaffaCakes118.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 9 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1752-2-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral1/memory/2604-15-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral1/memory/2604-14-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral1/memory/1752-16-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral1/memory/1752-89-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral1/memory/2888-91-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral1/memory/2888-92-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral1/memory/1752-160-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral1/memory/1752-161-0x0000000000400000-0x000000000048C000-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

Processes:

96fab9b48d7e94db87ead77e961086f3_JaffaCakes118.exe96fab9b48d7e94db87ead77e961086f3_JaffaCakes118.exe96fab9b48d7e94db87ead77e961086f3_JaffaCakes118.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	96fab9b48d7e94db87ead77e961086f3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	96fab9b48d7e94db87ead77e961086f3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	96fab9b48d7e94db87ead77e961086f3_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

96fab9b48d7e94db87ead77e961086f3_JaffaCakes118.exe

description	pid	Process	procid_target
PID 1752 wrote to memory of 2604	1752	96fab9b48d7e94db87ead77e961086f3_JaffaCakes118.exe	30
PID 1752 wrote to memory of 2604	1752	96fab9b48d7e94db87ead77e961086f3_JaffaCakes118.exe	30
PID 1752 wrote to memory of 2604	1752	96fab9b48d7e94db87ead77e961086f3_JaffaCakes118.exe	30
PID 1752 wrote to memory of 2604	1752	96fab9b48d7e94db87ead77e961086f3_JaffaCakes118.exe	30
PID 1752 wrote to memory of 2888	1752	96fab9b48d7e94db87ead77e961086f3_JaffaCakes118.exe	33
PID 1752 wrote to memory of 2888	1752	96fab9b48d7e94db87ead77e961086f3_JaffaCakes118.exe	33
PID 1752 wrote to memory of 2888	1752	96fab9b48d7e94db87ead77e961086f3_JaffaCakes118.exe	33
PID 1752 wrote to memory of 2888	1752	96fab9b48d7e94db87ead77e961086f3_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\96fab9b48d7e94db87ead77e961086f3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\96fab9b48d7e94db87ead77e961086f3_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1752
- C:\Users\Admin\AppData\Local\Temp\96fab9b48d7e94db87ead77e961086f3_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\96fab9b48d7e94db87ead77e961086f3_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2604
- C:\Users\Admin\AppData\Local\Temp\96fab9b48d7e94db87ead77e961086f3_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\96fab9b48d7e94db87ead77e961086f3_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2888

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\837C.F0A

Filesize
1KB

MD5
88cab9a8d09bfe510e73cf8caa24fecb

SHA1
6913569e159f6fbe2f65af01356995b970f52d66

SHA256
c50a69a396b420092c083b1c77c4e67da7e175363d12f220d9f6b3815860abf2

SHA512
fab4f6c919b1906f9c4dbbab30687cdeb0975070350e2ec279b30bb162ef4096ccc9542969af947a3d3cc27f28918fed6e2063e5f3b8d432da4e7ed125ca221b

Download Submit
C:\Users\Admin\AppData\Roaming\837C.F0A

Filesize
600B

MD5
b80a9f2394c825d1da667d353d9221fd

SHA1
f675bb4a7981dc351038c88ae8a19ab6e6378a39

SHA256
6971af1c2a42fe66195c798d8b551182dfd37c22a3039cc56b46bd3b58246872

SHA512
b5a7ff762bc5d2ad18709ac4a19c667911b0f81cd9772de7c479dcd4177891b0185a1dfffaa67dc4fa3653e4c2a270716e02042af800e61ce3fffb19750d8cc3

Download Submit
C:\Users\Admin\AppData\Roaming\837C.F0A

Filesize
996B

MD5
9f74ff8f7bddbbdbb5c076edc98b8a9e

SHA1
f6149d83c77a285c144ee4b849ae606375f5f154

SHA256
dc413922f38312c8f625169a7a70918af243a5a985963703019f0b9a11ea7cc8

SHA512
4b622098010a4b2fab7efbf5971613aa4ec55c5fe97066b284027959d00f6cce293dff6203eb1d299abbde6296230c047421a2207ba7047597f286c8b0624762

Download Submit
memory/1752-2-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/1752-161-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/1752-1-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/1752-160-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/1752-16-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/1752-89-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/2604-15-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/2604-14-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/2604-12-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/2888-92-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/2888-91-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads