cycbot | 55bbda7ef8ccf36366b2027dd53d3ab25d97b10845fe601f23bf6fcdf50de30e

General

Target

f9961644f774dd9b2533bb4fcd356ce7_JaffaCakes118.exe
Size

168KB
MD5

f9961644f774dd9b2533bb4fcd356ce7
SHA1

2091a1d49fa2e570e78d4dcb1680d05348ba9d3d
SHA256

55bbda7ef8ccf36366b2027dd53d3ab25d97b10845fe601f23bf6fcdf50de30e
SHA512

d7bdaa2feff2b2602dd0801b5545962edcbcab60c329b00dec00d7118c6d0b21a4fe4dcc3398b6c6db7e7ac6e3a72e6645b99f7b0e7edb43ab405e93cdfd20d7
SSDEEP

3072:cQskWUn3Ozry+KoRXckWQlHMoQEn9yzXZzZiHRUhog2T+wtYouP3oh:cxpUn393ouQlgVzAH2+TuouP3o

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 6 IoCs

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

resource	yara_rule
behavioral1/memory/2884-13-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/2372-15-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/2372-16-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral1/memory/2300-132-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/2372-133-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/2372-291-0x0000000000400000-0x0000000000491000-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-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\0E024\\1A84E.exe"	f9961644f774dd9b2533bb4fcd356ce7_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

resource	yara_rule
behavioral1/memory/2372-2-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2884-13-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2884-14-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2372-15-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2372-16-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/2300-130-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2300-132-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2372-133-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2372-291-0x0000000000400000-0x0000000000491000-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	f9961644f774dd9b2533bb4fcd356ce7_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f9961644f774dd9b2533bb4fcd356ce7_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f9961644f774dd9b2533bb4fcd356ce7_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 2884	2372	f9961644f774dd9b2533bb4fcd356ce7_JaffaCakes118.exe	30
PID 2372 wrote to memory of 2884	2372	f9961644f774dd9b2533bb4fcd356ce7_JaffaCakes118.exe	30
PID 2372 wrote to memory of 2884	2372	f9961644f774dd9b2533bb4fcd356ce7_JaffaCakes118.exe	30
PID 2372 wrote to memory of 2884	2372	f9961644f774dd9b2533bb4fcd356ce7_JaffaCakes118.exe	30
PID 2372 wrote to memory of 2300	2372	f9961644f774dd9b2533bb4fcd356ce7_JaffaCakes118.exe	32
PID 2372 wrote to memory of 2300	2372	f9961644f774dd9b2533bb4fcd356ce7_JaffaCakes118.exe	32
PID 2372 wrote to memory of 2300	2372	f9961644f774dd9b2533bb4fcd356ce7_JaffaCakes118.exe	32
PID 2372 wrote to memory of 2300	2372	f9961644f774dd9b2533bb4fcd356ce7_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\f9961644f774dd9b2533bb4fcd356ce7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f9961644f774dd9b2533bb4fcd356ce7_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Users\Admin\AppData\Local\Temp\f9961644f774dd9b2533bb4fcd356ce7_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f9961644f774dd9b2533bb4fcd356ce7_JaffaCakes118.exe startC:\Program Files (x86)\LP\4E60\5DC.exe%C:\Program Files (x86)\LP\4E60
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2884
- C:\Users\Admin\AppData\Local\Temp\f9961644f774dd9b2533bb4fcd356ce7_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f9961644f774dd9b2533bb4fcd356ce7_JaffaCakes118.exe startC:\Program Files (x86)\24DB0\lvvm.exe%C:\Program Files (x86)\24DB0
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2300

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

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Downloads

C:\Users\Admin\AppData\Roaming\0E024\4DB0.E02

Filesize
996B

MD5
5ac9a09b5335eae1eb02e06019d3a0a6

SHA1
597c4e4144d98212ea6c9394fc8d0497003e1648

SHA256
334a64589252af38477fa670554fd86c573d2d82822b3f711839a1dd8fb4ed16

SHA512
bff5372e9c81cffc812a811fb278fe4df9c036f6d99d22cbe40ec75d685e1738bf981fe9da4377d018ed8e4b45a13c989e6a36d16a404307ca5cb16fb5077b42

Download Submit
C:\Users\Admin\AppData\Roaming\0E024\4DB0.E02

Filesize
600B

MD5
bcf72122f91f7bdf2ee76583f42bb34f

SHA1
0aa8b9224229386e9ad76d64596a8bae6205f2fb

SHA256
e1c04f9c2458e291eb1ff393453e4e8f3705ea6f7fb1f2e65c96757db5433328

SHA512
1eb634cb7ef224c4b0ef6ef1f1a27c4dfaaa683f84117b01fd36ae70c3e8ee32360afff34206c892be276556b84e6b6fafea501808c324851cdb403507a14274

Download Submit
C:\Users\Admin\AppData\Roaming\0E024\4DB0.E02

Filesize
1KB

MD5
91182d8caaf57f3a51dc971015d691d4

SHA1
5f3722596a5644a71340ff7d952a6283635c1bd2

SHA256
6438ede0a30d012df1cca839d42b143a72eabd38bb87017ef93c9e488a6f89fa

SHA512
1779e28b90ce02c1c6107913d8c04551cb5736d06db3f36fbf34e8a47319c379b40d6cf3529fea44d11324458eacca8bdb7a10a49722166aac63a4f68d581546

Download Submit
memory/2300-129-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2300-132-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2300-130-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2372-16-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2372-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2372-15-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2372-133-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2372-2-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2372-291-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2884-12-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2884-14-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2884-13-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads