cycbot | 0c0ce74f9ae54ac28cda685d0f3bca939432208fd087beb38ee979be19d8606c

General

Target

JaffaCakes118_6b96ac0f56cd1e8c8a89e39e9177ea6c.exe
Size

182KB
MD5

6b96ac0f56cd1e8c8a89e39e9177ea6c
SHA1

49f7ec1695a91edc848566dfc6c4e7ff6e1fbb2f
SHA256

0c0ce74f9ae54ac28cda685d0f3bca939432208fd087beb38ee979be19d8606c
SHA512

203c104c10bc45c55b286a9aa0d7f537253fffbb31cfcf766b866fedfb2d621124c4c7d9a64850e50e1654be0eedaeaff87ed12d7889d5a7acabd68afa49b751
SSDEEP

3072:fRbf0RbQZFWc8gY1OWpnhzn8lKoo3lygF5nOzRg8XGDu2ROnWhW3fn:m4wJ1jnhT8TYlXLnO3a+nWg

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/2792-15-0x0000000000400000-0x000000000048C000-memory.dmp	family_cycbot
behavioral1/memory/2792-16-0x0000000000400000-0x000000000048C000-memory.dmp	family_cycbot
behavioral1/memory/2656-21-0x0000000000400000-0x000000000048C000-memory.dmp	family_cycbot
behavioral1/memory/2656-82-0x0000000000400000-0x000000000048C000-memory.dmp	family_cycbot
behavioral1/memory/1696-85-0x0000000000400000-0x000000000048C000-memory.dmp	family_cycbot
behavioral1/memory/2656-191-0x0000000000400000-0x000000000048C000-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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\dwm.exe"	JaffaCakes118_6b96ac0f56cd1e8c8a89e39e9177ea6c.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 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2656-3-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral1/memory/2792-13-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral1/memory/2792-15-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral1/memory/2792-16-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral1/memory/2656-21-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral1/memory/2656-82-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral1/memory/1696-84-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral1/memory/1696-85-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral1/memory/2656-191-0x0000000000400000-0x000000000048C000-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_6b96ac0f56cd1e8c8a89e39e9177ea6c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6b96ac0f56cd1e8c8a89e39e9177ea6c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6b96ac0f56cd1e8c8a89e39e9177ea6c.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2656 wrote to memory of 2792	2656	JaffaCakes118_6b96ac0f56cd1e8c8a89e39e9177ea6c.exe	30
PID 2656 wrote to memory of 2792	2656	JaffaCakes118_6b96ac0f56cd1e8c8a89e39e9177ea6c.exe	30
PID 2656 wrote to memory of 2792	2656	JaffaCakes118_6b96ac0f56cd1e8c8a89e39e9177ea6c.exe	30
PID 2656 wrote to memory of 2792	2656	JaffaCakes118_6b96ac0f56cd1e8c8a89e39e9177ea6c.exe	30
PID 2656 wrote to memory of 1696	2656	JaffaCakes118_6b96ac0f56cd1e8c8a89e39e9177ea6c.exe	32
PID 2656 wrote to memory of 1696	2656	JaffaCakes118_6b96ac0f56cd1e8c8a89e39e9177ea6c.exe	32
PID 2656 wrote to memory of 1696	2656	JaffaCakes118_6b96ac0f56cd1e8c8a89e39e9177ea6c.exe	32
PID 2656 wrote to memory of 1696	2656	JaffaCakes118_6b96ac0f56cd1e8c8a89e39e9177ea6c.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6b96ac0f56cd1e8c8a89e39e9177ea6c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6b96ac0f56cd1e8c8a89e39e9177ea6c.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2656
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6b96ac0f56cd1e8c8a89e39e9177ea6c.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6b96ac0f56cd1e8c8a89e39e9177ea6c.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2792
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6b96ac0f56cd1e8c8a89e39e9177ea6c.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6b96ac0f56cd1e8c8a89e39e9177ea6c.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1696

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\A362.A48

Filesize
597B

MD5
80d4a26f6647c169d9bde9de93450ab4

SHA1
327e3e4b8af32ae2b23c76b6d15c0d7ee5e8c8c5

SHA256
8e960bfc0b03ec6975c150cfb50d37310eb672edd450d756f758a4bdb22aef8c

SHA512
9ac0c6c00245dfff5d3a283468463d3d83f43c36433115a61282be89d67362b1a7562ba6d91b0b16375496cb6d34aa144917eb089aa900fd5e36eb049b7965aa

Download Submit
C:\Users\Admin\AppData\Roaming\A362.A48

Filesize
1KB

MD5
d33a82c7f1d7cb6ab38538e30ddcf89f

SHA1
ce0cd7c35ed09dec2ef2c83cc648484601f34253

SHA256
1a5e586e2dd928ce9dfdee2adfcb75b7e98ff38054faa06ff21f787864c8d637

SHA512
61bd917f14a36084e7b0bb05a6986028d235e7c4aed3dd3678442c18f72f3272c96bdae83cafcce8c88c8f98b9188569d0b9781d2e21346112adbc5d2d521f87

Download Submit
C:\Users\Admin\AppData\Roaming\A362.A48

Filesize
897B

MD5
4fb54694377754b76cd933665c657d14

SHA1
195b8db59363703b148491c999b1870ba5e73fbb

SHA256
a36d480840ce923b7f596b4410942c5e3bb7954a4b9b96b8852d73b7f94994ae

SHA512
d1206b60116bb2de1114b71f9718508b748e69ae867ffbcf04fd1fce203a2364b8da7ad2254f603cf813d1e83fe91a9946d4fd208718908db39a29d68789475c

Download Submit
C:\Users\Admin\AppData\Roaming\A362.A48

Filesize
1KB

MD5
d36c9d9b03a96b5160d371a5a6b689bc

SHA1
47ba2a516dc2be5957528a9f6d57589346b128de

SHA256
a5d1018c02a109b28be2f795e079ae0e70eac66bb885fc59d9a2ecb4f26cb76a

SHA512
ad1f316dbf83f68baa2527f13e79c3329be1f4622f3062d2e047c1cfe2277628cecacca9ee834382ea98a4068b825dde119b250ba0f76ef419f2618428106108

Download Submit
memory/1696-85-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/1696-84-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/2656-21-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/2656-1-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/2656-82-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/2656-3-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/2656-191-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/2792-16-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/2792-15-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/2792-13-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads