cycbot | 6f8434320195aa2059147916ae9e8189c326bd90f3601f999edeb27a9882bf3e

General

Target

JaffaCakes118_0faad919cdd4bc202671d56c04c86c46.exe
Size

164KB
MD5

0faad919cdd4bc202671d56c04c86c46
SHA1

392aff9fe4f5cb827412031e368eba6245695539
SHA256

6f8434320195aa2059147916ae9e8189c326bd90f3601f999edeb27a9882bf3e
SHA512

f182910352cfe505aa58fc4d0f3b81bf94ae255c7179b8e133439014736d2cdea5c1619db8d3501a50588f99c0adb00e098678da6c565694198f250f657de8a6
SSDEEP

3072:nTP7cQE4Fsh+vF9jTioIydg8RbANYwfYAK8CqQab2aa940Wc:nr7rvjPWoTkHRfQabjq/W

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/2736-8-0x0000000000400000-0x000000000046A000-memory.dmp	family_cycbot
behavioral1/memory/2736-7-0x0000000000400000-0x000000000046A000-memory.dmp	family_cycbot
behavioral1/memory/2252-16-0x0000000000400000-0x000000000046A000-memory.dmp	family_cycbot
behavioral1/memory/2252-81-0x0000000000400000-0x000000000046A000-memory.dmp	family_cycbot
behavioral1/memory/2988-86-0x0000000000400000-0x000000000046A000-memory.dmp	family_cycbot
behavioral1/memory/2252-194-0x0000000000400000-0x000000000046A000-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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\dwm.exe"	JaffaCakes118_0faad919cdd4bc202671d56c04c86c46.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/2252-2-0x0000000000400000-0x000000000046A000-memory.dmp	upx
behavioral1/memory/2736-8-0x0000000000400000-0x000000000046A000-memory.dmp	upx
behavioral1/memory/2736-7-0x0000000000400000-0x000000000046A000-memory.dmp	upx
behavioral1/memory/2736-5-0x0000000000400000-0x000000000046A000-memory.dmp	upx
behavioral1/memory/2252-16-0x0000000000400000-0x000000000046A000-memory.dmp	upx
behavioral1/memory/2252-81-0x0000000000400000-0x000000000046A000-memory.dmp	upx
behavioral1/memory/2988-86-0x0000000000400000-0x000000000046A000-memory.dmp	upx
behavioral1/memory/2988-85-0x0000000000400000-0x000000000046A000-memory.dmp	upx
behavioral1/memory/2252-194-0x0000000000400000-0x000000000046A000-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_0faad919cdd4bc202671d56c04c86c46.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0faad919cdd4bc202671d56c04c86c46.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0faad919cdd4bc202671d56c04c86c46.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 2736	2252	JaffaCakes118_0faad919cdd4bc202671d56c04c86c46.exe	30
PID 2252 wrote to memory of 2736	2252	JaffaCakes118_0faad919cdd4bc202671d56c04c86c46.exe	30
PID 2252 wrote to memory of 2736	2252	JaffaCakes118_0faad919cdd4bc202671d56c04c86c46.exe	30
PID 2252 wrote to memory of 2736	2252	JaffaCakes118_0faad919cdd4bc202671d56c04c86c46.exe	30
PID 2252 wrote to memory of 2988	2252	JaffaCakes118_0faad919cdd4bc202671d56c04c86c46.exe	32
PID 2252 wrote to memory of 2988	2252	JaffaCakes118_0faad919cdd4bc202671d56c04c86c46.exe	32
PID 2252 wrote to memory of 2988	2252	JaffaCakes118_0faad919cdd4bc202671d56c04c86c46.exe	32
PID 2252 wrote to memory of 2988	2252	JaffaCakes118_0faad919cdd4bc202671d56c04c86c46.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0faad919cdd4bc202671d56c04c86c46.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0faad919cdd4bc202671d56c04c86c46.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2252
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0faad919cdd4bc202671d56c04c86c46.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0faad919cdd4bc202671d56c04c86c46.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2736
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0faad919cdd4bc202671d56c04c86c46.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0faad919cdd4bc202671d56c04c86c46.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2988

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\79B2.090

Filesize
600B

MD5
40b64986500e5117227f1163de890b6c

SHA1
61a3bf03ede9e9033ddc8d402c6084d953b11b69

SHA256
422dab44d3b5fa4f229e928fd4a97e53e2a47540ad43116c3261a3b9c3aafa2f

SHA512
29f46e2980860c213485f441da69d9c6bc33e5002df180d3c9c031586c8a62dcba70339a561022a5a702c6e784b26e9108a70c3888cfe487e0494b6f697882c4

Download Submit
C:\Users\Admin\AppData\Roaming\79B2.090

Filesize
1KB

MD5
436a5a9ebbecabc16624187a8daf6328

SHA1
edc38506dc658fc47c2ded946661a384ad403923

SHA256
b9763a2ce6a77400467327a44b160c914c9b5f72a821352ce43bc0d1fd9476dc

SHA512
f8129259dd448c20d56dc98bdf9da4edeeea1a4ea7646ca8d18b00edfcbfdaacd3ea18f48a456bccecb5485bb8ad8b7f9faefbb9e531c405085855a086d47501

Download Submit
C:\Users\Admin\AppData\Roaming\79B2.090

Filesize
996B

MD5
c9d4d3d01eb6a93eed8e8dd18d9c113b

SHA1
e02aaebd65bb3b816300350fbbe03998739f7ee5

SHA256
5608a423eeaba50fe8eb984350ee73bd01c21c533a79574c65838c98928285dd

SHA512
81032de6685ddede7f772a975f12b392454c0450c80e322467f227f9a9016fec8b8603bd4443a245cf9db355456b50ac0e0daae57d65795fdbfaa9317dd37ecc

Download Submit
memory/2252-2-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/2252-194-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/2252-1-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/2252-16-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/2252-81-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/2736-7-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/2736-5-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/2736-8-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/2988-86-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/2988-85-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/2988-83-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads