cycbot | d91f041ae36d2f1ec9da0516bd28342edd8cc0c964951ce95ef898eac33f32c7

General

Target

d1687e286fd52784e083653d00ddd99b_JaffaCakes118.exe
Size

164KB
MD5

d1687e286fd52784e083653d00ddd99b
SHA1

a3efd4fca8f963b8226334675f0b4a7281830602
SHA256

d91f041ae36d2f1ec9da0516bd28342edd8cc0c964951ce95ef898eac33f32c7
SHA512

058047d5abf0bb7bc3fccade3b048deccf509de7cfcbd3c1697555ea854112df2b21ee9c44b57b2644ab56e669482ee578c1cdcbb0815ded3cf9dc9be77c2333
SSDEEP

3072:9/0YozN8N5FrKKMvkhpIDP7p86H5uxnvB5gCGwR2mNSZqJEhUq/4c78R:mY+cdMvcAPOI5Yv9rR2LZ6UjfS

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/1040-6-0x0000000000400000-0x000000000043D000-memory.dmp	family_cycbot
behavioral1/memory/1720-13-0x0000000000400000-0x000000000043D000-memory.dmp	family_cycbot
behavioral1/memory/2760-73-0x0000000000400000-0x000000000043D000-memory.dmp	family_cycbot
behavioral1/memory/1720-74-0x0000000000400000-0x000000000043D000-memory.dmp	family_cycbot
behavioral1/memory/1720-161-0x0000000000400000-0x000000000043D000-memory.dmp	family_cycbot
behavioral1/memory/1720-194-0x0000000000400000-0x000000000043D000-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"	d1687e286fd52784e083653d00ddd99b_JaffaCakes118.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1720-2-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral1/memory/1040-5-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral1/memory/1040-6-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral1/memory/1720-13-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral1/memory/2760-73-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral1/memory/1720-74-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral1/memory/1720-161-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral1/memory/1720-194-0x0000000000400000-0x000000000043D000-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	d1687e286fd52784e083653d00ddd99b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d1687e286fd52784e083653d00ddd99b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d1687e286fd52784e083653d00ddd99b_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 1040	1720	d1687e286fd52784e083653d00ddd99b_JaffaCakes118.exe	30
PID 1720 wrote to memory of 1040	1720	d1687e286fd52784e083653d00ddd99b_JaffaCakes118.exe	30
PID 1720 wrote to memory of 1040	1720	d1687e286fd52784e083653d00ddd99b_JaffaCakes118.exe	30
PID 1720 wrote to memory of 1040	1720	d1687e286fd52784e083653d00ddd99b_JaffaCakes118.exe	30
PID 1720 wrote to memory of 2760	1720	d1687e286fd52784e083653d00ddd99b_JaffaCakes118.exe	32
PID 1720 wrote to memory of 2760	1720	d1687e286fd52784e083653d00ddd99b_JaffaCakes118.exe	32
PID 1720 wrote to memory of 2760	1720	d1687e286fd52784e083653d00ddd99b_JaffaCakes118.exe	32
PID 1720 wrote to memory of 2760	1720	d1687e286fd52784e083653d00ddd99b_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\d1687e286fd52784e083653d00ddd99b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d1687e286fd52784e083653d00ddd99b_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Users\Admin\AppData\Local\Temp\d1687e286fd52784e083653d00ddd99b_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\d1687e286fd52784e083653d00ddd99b_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1040
- C:\Users\Admin\AppData\Local\Temp\d1687e286fd52784e083653d00ddd99b_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\d1687e286fd52784e083653d00ddd99b_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2760

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

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Downloads

C:\Users\Admin\AppData\Roaming\148A.089

Filesize
1KB

MD5
53bd94d9d92010e6ddcb0b02e4e38da6

SHA1
6008d1d224567ba1f90737c9b149ab3562c9a5a9

SHA256
f39ad17f1a0dfe5716d81f4a8581a2881f34d65ba35acea39010c929b33e3247

SHA512
2e3caee0a147894dbc9706f37dc2661f59d4758a85e7396b577fb4381352b56e5991904ee9d55d6ce3a3a1f13c7eaff03023ccfba85eb7fb631fdd8088e0acd9

Download Submit
C:\Users\Admin\AppData\Roaming\148A.089

Filesize
600B

MD5
61b77495177104af793aa5e790f77c41

SHA1
ea5f0304683e72ed46892c313a3e11a32dc85480

SHA256
d712557c539c16f589ee9d453e0c969fe3138e81726af5ce7b9bc938cfa6d4f4

SHA512
f476d9460de0195c607fb1ffe4748f069cd913f5dfe9a54c49d52676683a21e5694d18d803ba21460fd562aa17b271b226239800ee52729bb2dcb60d5acee5d2

Download Submit
C:\Users\Admin\AppData\Roaming\148A.089

Filesize
996B

MD5
1f7e200d5be1992b528d29fcaaca56f4

SHA1
ffc88c703533e4ac82b9197423d12a29db8f0b3d

SHA256
2e8f6a2db821ca2415d9921fc81c4e33b1b9aa4ed5cca0a4d1c077bb216cfca0

SHA512
27f79faad6733c12cdf4a7016a7c3c1ec8d4422470fdb0d2eeb87efd025d9f053b1946d75ed6b4821c2a136bce0508a3d7ebba84a306bee89fc0cd1c8c94b744

Download Submit
memory/1040-5-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1040-6-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1720-1-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1720-2-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1720-13-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1720-74-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1720-161-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1720-194-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2760-73-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads