cycbot | 600407241da060c46887b337564359531405adfbfa92475a3100aaa559807ec5

General

Target

c9f9737348a543e60117ab280dded5cd_JaffaCakes118.exe
Size

173KB
MD5

c9f9737348a543e60117ab280dded5cd
SHA1

6eb3695864b28ebe99b44e2bed88c1f924a3d26c
SHA256

600407241da060c46887b337564359531405adfbfa92475a3100aaa559807ec5
SHA512

c5a5c28e478cfe60f0a19990c4e815934b72e250b625d1f98d722c235c26e5a063459765e162521d4c4c2ea87dfb5b08267c45c362b799a387611b5f7207d455
SSDEEP

3072:i9DX4mWWPLBFls716MUediJUBID4eJJ901FZnE5Fl90H9sTffK3M8fonrhWEByMv:iRFNLBFqXUtUSJy1Q5F0H9wq3Mi8DBHn

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++.

resource	yara_rule
behavioral1/memory/2748-15-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/1596-16-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral1/memory/1596-17-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/1700-129-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/1700-128-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/1596-130-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/1596-296-0x0000000000400000-0x0000000000490000-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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\293D9\\70BA3.exe"	c9f9737348a543e60117ab280dded5cd_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 10 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1596-2-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2748-12-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2748-14-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2748-15-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/1596-16-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/1596-17-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/1700-129-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/1700-128-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/1596-130-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/1596-296-0x0000000000400000-0x0000000000490000-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	c9f9737348a543e60117ab280dded5cd_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c9f9737348a543e60117ab280dded5cd_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c9f9737348a543e60117ab280dded5cd_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1596 wrote to memory of 2748	1596	c9f9737348a543e60117ab280dded5cd_JaffaCakes118.exe	28
PID 1596 wrote to memory of 2748	1596	c9f9737348a543e60117ab280dded5cd_JaffaCakes118.exe	28
PID 1596 wrote to memory of 2748	1596	c9f9737348a543e60117ab280dded5cd_JaffaCakes118.exe	28
PID 1596 wrote to memory of 2748	1596	c9f9737348a543e60117ab280dded5cd_JaffaCakes118.exe	28
PID 1596 wrote to memory of 1700	1596	c9f9737348a543e60117ab280dded5cd_JaffaCakes118.exe	30
PID 1596 wrote to memory of 1700	1596	c9f9737348a543e60117ab280dded5cd_JaffaCakes118.exe	30
PID 1596 wrote to memory of 1700	1596	c9f9737348a543e60117ab280dded5cd_JaffaCakes118.exe	30
PID 1596 wrote to memory of 1700	1596	c9f9737348a543e60117ab280dded5cd_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\c9f9737348a543e60117ab280dded5cd_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c9f9737348a543e60117ab280dded5cd_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1596
- C:\Users\Admin\AppData\Local\Temp\c9f9737348a543e60117ab280dded5cd_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\c9f9737348a543e60117ab280dded5cd_JaffaCakes118.exe startC:\Program Files (x86)\LP\A312\46D.exe%C:\Program Files (x86)\LP\A312
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2748
- C:\Users\Admin\AppData\Local\Temp\c9f9737348a543e60117ab280dded5cd_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\c9f9737348a543e60117ab280dded5cd_JaffaCakes118.exe startC:\Program Files (x86)\D9A44\lvvm.exe%C:\Program Files (x86)\D9A44
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1700

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\293D9\9A44.93D

Filesize
996B

MD5
6c1642900cd9adbb35af52e073d15d41

SHA1
5d230c229836fcc35190cab874286d8a606b39ae

SHA256
3a60f97f2ffda156ebacdb6c0529c987ac710153df4021cfec01f4fa8416be6c

SHA512
13f1ecd4fd711550b04b48d0bfbc616ab315b090da96bfd01cdce67b71ecebafe159cb7c79e476ea3aa734343ea8d12e43b21a8cee1ff5c76b1ba12f45fb22ff

Download Submit
C:\Users\Admin\AppData\Roaming\293D9\9A44.93D

Filesize
600B

MD5
494522d201e075e604dc7e70f73458c4

SHA1
d10724b9ec6a4e220954089c5633b2c9978c8891

SHA256
10265a428418cab07e71cea47a629e683230f60200a5f57bb25609bea764b29f

SHA512
cedbf9d2b42e093350477a36db5bf0dad45cf82d95c29f1cbd08a7d4bdc8ae12355e3bf1681be5a3fdd99f73395ec2c1b304c014510d81070a1ff974e3e0da67

Download Submit
C:\Users\Admin\AppData\Roaming\293D9\9A44.93D

Filesize
1KB

MD5
e9f403fcac8fe83d9ab7a57e374b3c6d

SHA1
ec30275ca5df5422dbd1b2834532108777f19e09

SHA256
d16c455dedfab9fad66bded5de96a9b878aa15379e9f30b4a20a2956c62c646d

SHA512
3260f0ca89c21f14ad41b99b38d5435dafd41daebd1cd2c2790b8c22d81f86342b3007f6ba086645674696535bd5edb7f583edf72527e01d6f46b0b38544fedb

Download Submit
memory/1596-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/1596-2-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1596-296-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1596-16-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/1596-17-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1596-130-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1700-129-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1700-128-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1700-126-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2748-15-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2748-14-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2748-12-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads