cycbot | 26560081bc19cc9bb7cfa32037e3d2acd563bb2ac72448a12cd25d3697a7f3e2

General

Target

JaffaCakes118_4add091628f0045631a1a046555d4a8a.exe
Size

177KB
MD5

4add091628f0045631a1a046555d4a8a
SHA1

e4ad509cd50862dd6a316243c6ae8f4e0e5a9350
SHA256

26560081bc19cc9bb7cfa32037e3d2acd563bb2ac72448a12cd25d3697a7f3e2
SHA512

63e64b81d7edff03bb28aac8edd4df531b4ed435a17649bd1b953cb8f95b2582b26b3d04ce7738a7c2537916661ee0b703da36aa16b0766cbd47b3655f96ee83
SSDEEP

3072:bih3DrKbK1vHa1wHx7N9i/sHu74/zhddIuz+giPEdNuLhoVDlbm+p77:bihfKbES1wNNre47jd/gEvChoVDpX

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/2792-9-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/2792-7-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/1728-14-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/1728-77-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/300-81-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/1728-184-0x0000000000400000-0x000000000044B000-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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\conhost = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\conhost.exe"	JaffaCakes118_4add091628f0045631a1a046555d4a8a.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1728-1-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2792-9-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2792-7-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/1728-14-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/1728-77-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/300-80-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/300-81-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/1728-184-0x0000000000400000-0x000000000044B000-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_4add091628f0045631a1a046555d4a8a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_4add091628f0045631a1a046555d4a8a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_4add091628f0045631a1a046555d4a8a.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1728 wrote to memory of 2792	1728	JaffaCakes118_4add091628f0045631a1a046555d4a8a.exe	30
PID 1728 wrote to memory of 2792	1728	JaffaCakes118_4add091628f0045631a1a046555d4a8a.exe	30
PID 1728 wrote to memory of 2792	1728	JaffaCakes118_4add091628f0045631a1a046555d4a8a.exe	30
PID 1728 wrote to memory of 2792	1728	JaffaCakes118_4add091628f0045631a1a046555d4a8a.exe	30
PID 1728 wrote to memory of 300	1728	JaffaCakes118_4add091628f0045631a1a046555d4a8a.exe	32
PID 1728 wrote to memory of 300	1728	JaffaCakes118_4add091628f0045631a1a046555d4a8a.exe	32
PID 1728 wrote to memory of 300	1728	JaffaCakes118_4add091628f0045631a1a046555d4a8a.exe	32
PID 1728 wrote to memory of 300	1728	JaffaCakes118_4add091628f0045631a1a046555d4a8a.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4add091628f0045631a1a046555d4a8a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4add091628f0045631a1a046555d4a8a.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1728
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4add091628f0045631a1a046555d4a8a.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4add091628f0045631a1a046555d4a8a.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2792
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4add091628f0045631a1a046555d4a8a.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4add091628f0045631a1a046555d4a8a.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:300

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

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\73D8.6E9

Filesize
1KB

MD5
28fe58ea0bdbacdcc43e9e1f022e7109

SHA1
1349544621f17ad8e2d3c688855cc0615ea00810

SHA256
b3eae97d7699882e870f826fd2810753f6756eef6be8a25317b744839ec6d20a

SHA512
b25ac8a2bbf2b215aa801ed491cb8bf0d0c0a920cdd19568687b9b32fcde4491e36bb86d96635f4341c049174463897c9a4398dd1dfccd428c180c4119b5fe59

Download Submit
C:\Users\Admin\AppData\Roaming\73D8.6E9

Filesize
600B

MD5
1655e7eed30c06f5569da4ceb102a654

SHA1
105aaaa1ab9ad9c38b3716cf56953e5d052d7535

SHA256
7e565ed65e39da96a04eea49f2d59c5f609f27bc13da5fdc529ea962e6a130f0

SHA512
7e419f27ed356aa0551e90edf3c8e3f1c29ac30a82340d4430d895f1fecdecd8f65a958df640caa5f50d043fbdcaaa4678badcf4259735f623d5d42a62c68c24

Download Submit
C:\Users\Admin\AppData\Roaming\73D8.6E9

Filesize
996B

MD5
80bbbe153c4d7de5294f29fdcd3758fa

SHA1
e4b6aa3a1d4d5ff9638d7760b6f5257a8b45b1ea

SHA256
5e9825d55b795f249fbb332cc2e2b17c6ed2df324b93ab8ab4f0d9ab8138ee75

SHA512
f7ec5fa171a69a82a093af731725edabd4ade6d5ed7803d1fccb66fb8504e08ed7f93438031cd7af0351e757759981a7611d0ed6d1dc67e55ebc5ee25cbf10d1

Download Submit
memory/300-80-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/300-79-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/300-81-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1728-14-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1728-77-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1728-1-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1728-184-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2792-7-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2792-8-0x00000000002F8000-0x0000000000314000-memory.dmp

Filesize
112KB

Download
memory/2792-9-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads