cycbot | 7cb61c25d3612d8d999349c01407aa7404c76e5d98c43716d56b56c9a00e53aa

General

Target

JaffaCakes118_2993456efff01af48d20da0076f013c3.exe
Size

182KB
MD5

2993456efff01af48d20da0076f013c3
SHA1

68cf90a7eb6e6778e7e974e5cea7672fda030728
SHA256

7cb61c25d3612d8d999349c01407aa7404c76e5d98c43716d56b56c9a00e53aa
SHA512

3727eeb86bbda029349b53c115a93b2a2f3f07d5c398fa9358acadef125def428450f2897335b2c9069fb09db67cce1f676b3a4d83d79198ef15a9f95953727e
SSDEEP

3072:biIHuobNqC1st43rOeKcNOFiTJTcZ+zQWgYwo02pVR+90dCw3EbxnzOsWb82psuh:biIlbNqC1gwjKxiTJTjz/qWVRJCw0psX

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/2764-8-0x0000000000400000-0x000000000046A000-memory.dmp	family_cycbot
behavioral1/memory/2928-18-0x0000000000400000-0x000000000046A000-memory.dmp	family_cycbot
behavioral1/memory/2240-79-0x0000000000400000-0x000000000046A000-memory.dmp	family_cycbot
behavioral1/memory/2928-80-0x0000000000400000-0x000000000046A000-memory.dmp	family_cycbot
behavioral1/memory/2928-178-0x0000000000400000-0x000000000046A000-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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\dwm.exe"	JaffaCakes118_2993456efff01af48d20da0076f013c3.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 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2928-2-0x0000000000400000-0x000000000046A000-memory.dmp	upx
behavioral1/memory/2764-6-0x0000000000400000-0x000000000046A000-memory.dmp	upx
behavioral1/memory/2764-8-0x0000000000400000-0x000000000046A000-memory.dmp	upx
behavioral1/memory/2928-18-0x0000000000400000-0x000000000046A000-memory.dmp	upx
behavioral1/memory/2240-78-0x0000000000400000-0x000000000046A000-memory.dmp	upx
behavioral1/memory/2240-79-0x0000000000400000-0x000000000046A000-memory.dmp	upx
behavioral1/memory/2928-80-0x0000000000400000-0x000000000046A000-memory.dmp	upx
behavioral1/memory/2928-178-0x0000000000400000-0x000000000046A000-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_2993456efff01af48d20da0076f013c3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2993456efff01af48d20da0076f013c3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2993456efff01af48d20da0076f013c3.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2928 wrote to memory of 2764	2928	JaffaCakes118_2993456efff01af48d20da0076f013c3.exe	30
PID 2928 wrote to memory of 2764	2928	JaffaCakes118_2993456efff01af48d20da0076f013c3.exe	30
PID 2928 wrote to memory of 2764	2928	JaffaCakes118_2993456efff01af48d20da0076f013c3.exe	30
PID 2928 wrote to memory of 2764	2928	JaffaCakes118_2993456efff01af48d20da0076f013c3.exe	30
PID 2928 wrote to memory of 2240	2928	JaffaCakes118_2993456efff01af48d20da0076f013c3.exe	32
PID 2928 wrote to memory of 2240	2928	JaffaCakes118_2993456efff01af48d20da0076f013c3.exe	32
PID 2928 wrote to memory of 2240	2928	JaffaCakes118_2993456efff01af48d20da0076f013c3.exe	32
PID 2928 wrote to memory of 2240	2928	JaffaCakes118_2993456efff01af48d20da0076f013c3.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2993456efff01af48d20da0076f013c3.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2993456efff01af48d20da0076f013c3.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2928
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2993456efff01af48d20da0076f013c3.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2993456efff01af48d20da0076f013c3.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2764
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2993456efff01af48d20da0076f013c3.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2993456efff01af48d20da0076f013c3.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2240

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\A0DD.5AE

Filesize
1KB

MD5
258d95cc73945cf59e41cfe3a26e2976

SHA1
5d501be89d10fbfdbf31ae9b5d57d3ccd9f66199

SHA256
a77e9ff0947ac289d004aaed6234834b6bf670f80ebbdf0064b5187c4a4fa272

SHA512
8b72adc6c8822f0a1ca9a06fd939ba15b0ff812d58e7e3abd5b57f9012e72108e69516f48e51ae909ed117ee260774d09f92bb4fff828501ddfe50073df15369

Download Submit
C:\Users\Admin\AppData\Roaming\A0DD.5AE

Filesize
897B

MD5
ff41353e2bd76689588660fe531412bc

SHA1
ae1df22da90958ae766a7a233fc27c8f51ff7dd8

SHA256
4790b0d5d5167d6cc4490aab9ef1c37c3a0367ddd697c4534e98d04fbbcc4f92

SHA512
b3f194a9433eb9ced3dfc2221450c108a4c692bf77d598408a7a9c161a5cd2fa37ab96e2c10fbcb4885c925a5b2ffe3ea5e2096238b6ae7e6b99de7ecdf5b457

Download Submit
C:\Users\Admin\AppData\Roaming\A0DD.5AE

Filesize
1KB

MD5
c33b75df16dc3b32b71dd52131f30dd3

SHA1
8af89017596ee8fbf2b2e0e0aaf2a75b5b5c69a0

SHA256
5e4d30d297047b3627f9acbe8eae41fa4763107811c622687a955c6f133b76e2

SHA512
db999b07012e7abfcb01b5cbba5c41f15e05d5c3c627417661e71a2eb83118889b48fbce52b8699b60f5ad256d27074f252ba7839b58fb2b150d8d5c342888da

Download Submit
memory/2240-78-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/2240-79-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/2764-6-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/2764-8-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/2928-1-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/2928-2-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/2928-18-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/2928-80-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/2928-178-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads