cycbot | 249e2ed835bf74f168b9e85071557dd4ad72084b90e554d210685bfe00a7f6ac

General

Target

e0f25f906c395528044b5d4df6d182f4_JaffaCakes118.exe
Size

181KB
MD5

e0f25f906c395528044b5d4df6d182f4
SHA1

329e68b6e75b1ed9758ec6bb639eb6ee99192c90
SHA256

249e2ed835bf74f168b9e85071557dd4ad72084b90e554d210685bfe00a7f6ac
SHA512

1ec610ff634ae4bfa64339be4918cdcc96cd5cf4853f468503d7f4333759bd94b296cb96f57e710197ec2bc0da1ca61cb9caa7ea9a5efb9bad692d57828dfd6d
SSDEEP

3072:aD8RHNMbHuH4xHfY4b//r8lFjY8n6pto1Sdu/NEl0hbCgphekEzRiQ:PHNMbHuYxHA4bOFs8n7SdUqyhA

Score

10^/10

cycbot backdoor discovery 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 4 IoCs

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

resource	yara_rule
behavioral1/memory/2104-10-0x0000000000400000-0x000000000044E000-memory.dmp	family_cycbot
behavioral1/memory/1952-15-0x0000000000400000-0x000000000044E000-memory.dmp	family_cycbot
behavioral1/memory/2160-86-0x0000000000400000-0x000000000044E000-memory.dmp	family_cycbot
behavioral1/memory/1952-195-0x0000000000400000-0x000000000044E000-memory.dmp	family_cycbot

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 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1952-2-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/2104-8-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/2104-10-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/1952-15-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/2160-84-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/2160-86-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/1952-195-0x0000000000400000-0x000000000044E000-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	e0f25f906c395528044b5d4df6d182f4_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e0f25f906c395528044b5d4df6d182f4_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e0f25f906c395528044b5d4df6d182f4_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1952 wrote to memory of 2104	1952	e0f25f906c395528044b5d4df6d182f4_JaffaCakes118.exe	30
PID 1952 wrote to memory of 2104	1952	e0f25f906c395528044b5d4df6d182f4_JaffaCakes118.exe	30
PID 1952 wrote to memory of 2104	1952	e0f25f906c395528044b5d4df6d182f4_JaffaCakes118.exe	30
PID 1952 wrote to memory of 2104	1952	e0f25f906c395528044b5d4df6d182f4_JaffaCakes118.exe	30
PID 1952 wrote to memory of 2160	1952	e0f25f906c395528044b5d4df6d182f4_JaffaCakes118.exe	32
PID 1952 wrote to memory of 2160	1952	e0f25f906c395528044b5d4df6d182f4_JaffaCakes118.exe	32
PID 1952 wrote to memory of 2160	1952	e0f25f906c395528044b5d4df6d182f4_JaffaCakes118.exe	32
PID 1952 wrote to memory of 2160	1952	e0f25f906c395528044b5d4df6d182f4_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\e0f25f906c395528044b5d4df6d182f4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e0f25f906c395528044b5d4df6d182f4_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1952
- C:\Users\Admin\AppData\Local\Temp\e0f25f906c395528044b5d4df6d182f4_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e0f25f906c395528044b5d4df6d182f4_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2104
- C:\Users\Admin\AppData\Local\Temp\e0f25f906c395528044b5d4df6d182f4_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e0f25f906c395528044b5d4df6d182f4_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2160

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\BCAD.566

Filesize
600B

MD5
cce91e7c2f3a5d2318c61e330a75840c

SHA1
2edcd0c894ba305d0719672a1e52b8e33b7219c6

SHA256
6ded9ef7977b8c3af24246fc45a99480a6085dae73e52b0dce5bbbf5a7c621c0

SHA512
eb46f6c0ca1d9b50563434c43341355b2d770df066574b8987fbb58e41ce80c48fe05f8c947868d23da2d41102a956ee209266f1d3b665cc48ca4ba7d92b42f5

Download Submit
C:\Users\Admin\AppData\Roaming\BCAD.566

Filesize
1KB

MD5
a2ce8b8ec0026bac60e7832784aa7cf9

SHA1
6578c4428868a6cdc0d2e9a1d30fb65f9f8f6469

SHA256
332cc733e7481aae007ed7ee44b8e7a6bd2821f1066233794d856eec6d0a620d

SHA512
a15eebae7aa252b90d57c403fa3f247a470a21b07be740998d2c43ffc4735913a20681ac568aa9c31e4cc65050186c0fa0ceb454aaf4572f6b257cea118ecd7b

Download Submit
C:\Users\Admin\AppData\Roaming\BCAD.566

Filesize
996B

MD5
54e9b00e3cea8aafbe47a1da18eaf5fb

SHA1
dc2b5f14379378d81dea905e1ccb794301591ece

SHA256
4ab6ac1b5bdcf249ad25573021adf1a84b4c6f91280b9d3cd894899e2f85a5b7

SHA512
bdf6f306ac716043990faf1876b21bd378cf578e9237261f09e56f531aec4c2c29a3b85f34da5673a6cb34560e6e74fa90175945726426b12a4546fe4e5c3a71

Download Submit
memory/1952-1-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1952-2-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1952-15-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1952-195-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2104-8-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2104-10-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2160-84-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2160-86-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing