cycbot | ab30ffc64f2bb6581505a6cfb4cea9fd07d13b0e7c27677f68c3296cdbcae353

General

Target

JaffaCakes118_1794cdd710d6b7ba8b1b60f9ea7afcc9.exe
Size

176KB
MD5

1794cdd710d6b7ba8b1b60f9ea7afcc9
SHA1

36538a6eda4e155e81005958ed928d973529e0c6
SHA256

ab30ffc64f2bb6581505a6cfb4cea9fd07d13b0e7c27677f68c3296cdbcae353
SHA512

f811c8994d90ccc771507e8511ceae05cd6cdddaecc5de323e0b7600afdef305ce909ce5bd0457e9cb799a539deebc1a97d7e02a4cf36f0a4894771ca9d23b2b
SSDEEP

3072:Tq2UvckSVtQC3/xteR1caD2jDu7CyVY/5AB+NUxVlZWzu0ZJxh2Q9mhpx0D:9U0VVP5kHtEDgqBAeMAu0ZJxhfkz0

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 5 IoCs

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

resource	yara_rule
behavioral1/memory/2384-9-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/1916-20-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/1916-90-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/2024-93-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/1916-201-0x0000000000400000-0x000000000044B000-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 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1916-2-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2384-8-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2384-9-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/1916-20-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/1916-90-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2024-92-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2024-93-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/1916-201-0x0000000000400000-0x000000000044B000-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_1794cdd710d6b7ba8b1b60f9ea7afcc9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1794cdd710d6b7ba8b1b60f9ea7afcc9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1794cdd710d6b7ba8b1b60f9ea7afcc9.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1916 wrote to memory of 2384	1916	JaffaCakes118_1794cdd710d6b7ba8b1b60f9ea7afcc9.exe	30
PID 1916 wrote to memory of 2384	1916	JaffaCakes118_1794cdd710d6b7ba8b1b60f9ea7afcc9.exe	30
PID 1916 wrote to memory of 2384	1916	JaffaCakes118_1794cdd710d6b7ba8b1b60f9ea7afcc9.exe	30
PID 1916 wrote to memory of 2384	1916	JaffaCakes118_1794cdd710d6b7ba8b1b60f9ea7afcc9.exe	30
PID 1916 wrote to memory of 2024	1916	JaffaCakes118_1794cdd710d6b7ba8b1b60f9ea7afcc9.exe	32
PID 1916 wrote to memory of 2024	1916	JaffaCakes118_1794cdd710d6b7ba8b1b60f9ea7afcc9.exe	32
PID 1916 wrote to memory of 2024	1916	JaffaCakes118_1794cdd710d6b7ba8b1b60f9ea7afcc9.exe	32
PID 1916 wrote to memory of 2024	1916	JaffaCakes118_1794cdd710d6b7ba8b1b60f9ea7afcc9.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1794cdd710d6b7ba8b1b60f9ea7afcc9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1794cdd710d6b7ba8b1b60f9ea7afcc9.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1916
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1794cdd710d6b7ba8b1b60f9ea7afcc9.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1794cdd710d6b7ba8b1b60f9ea7afcc9.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2384
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1794cdd710d6b7ba8b1b60f9ea7afcc9.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1794cdd710d6b7ba8b1b60f9ea7afcc9.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2024

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\FEB8.577

Filesize
597B

MD5
a01fcddc349065959294cc3a59259873

SHA1
bb16b1279c74d3164cbc0b7a2215bbc770eca7d1

SHA256
8ea5e4d20f571d3b6e9fc6445b06285f75f5f1d12bf152be9b4771e3091bfaef

SHA512
f4ab57f18859eec6caf748c2755eb14e214c7c570af8ac4edeb6e9d60d8dbf09544d634812dfef6d4b9e0e4665cc6407dcd266d6a3c57807ad3f504e10e9a914

Download Submit
C:\Users\Admin\AppData\Roaming\FEB8.577

Filesize
1KB

MD5
1078d0bc366da6ad8ef4bc651d061bc5

SHA1
97223f089c879295f604296baaf53952a7ca1164

SHA256
03f69dfd71b13387067ba5b98c736b8c45210c65da159d43b556722f3697f338

SHA512
bc5a7cf94cd98e00f32245cf5a8994132272521665c539c0833c3522531dfe99bf62f26c7cf4d3d5831d4978adfa10029e021f2daf426450e3d1c66bfbfcbd25

Download Submit
C:\Users\Admin\AppData\Roaming\FEB8.577

Filesize
897B

MD5
a56a09ab355933012f73eced7c66230e

SHA1
71ab3f7fd700f050a1f598f3297eceb84ad8be36

SHA256
5d38bc174733aae891b60d6c729f0952b797ffb1d6480796fd98d9a5cd6ba1d3

SHA512
3edaf4568c84437986761954a21aa95ce6a7c827ad0941c33c25956f3fd92a812826e894efd09c13651c656327c194275435ba5a6b9161a0bf9e1c4b5e2dac32

Download Submit
C:\Users\Admin\AppData\Roaming\FEB8.577

Filesize
1KB

MD5
cccf86dea4fedeaedba0866273925781

SHA1
07015b402a9fd6df5b49c1dcbbfd684d6d23b4f8

SHA256
f809350a8b4bbc1ac1b0795cd0fef6314862692e575fa5a1522cd65e700f88a1

SHA512
15cb2c1a50c1bc4a0e85595536287075aa31a9bd4d8e02bef1e00e646956a23ae2cc9e012631631056249d23ccd9e892d5448b796854c5d263b84e331537b7bb

Download Submit
memory/1916-1-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1916-2-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1916-201-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1916-20-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1916-90-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2024-92-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2024-93-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2384-9-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2384-7-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2384-8-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download

Analysis

Sharing