cycbot | b60c47f55209e39d9f2ef9fe6a8b20324cb5cbe2d7d696fc76cbcd319919608e

General

Target

cc9dc086fb0bfa15c1bbc2a67185f44f_JaffaCakes118.exe
Size

174KB
MD5

cc9dc086fb0bfa15c1bbc2a67185f44f
SHA1

fb6b4470c644bb434ef675ac8c6152fe6bad9e08
SHA256

b60c47f55209e39d9f2ef9fe6a8b20324cb5cbe2d7d696fc76cbcd319919608e
SHA512

441547a3168505deed5a3a58b0fd81b221d83af67f1e117ac4a6d43a2fea4db8d32df19d3543d58534315698ef493e2dcc995c4d2bab99c9a125012f5b772d72
SSDEEP

3072:hgWY2StOg2IXQ7X2CEA5ZR48xGSLYi9h/FA3WygYaYN5W5E1xV9pquB:+TV/KXpFJPki9d633/aWosnouB

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 5 IoCs

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

resource	yara_rule
behavioral1/memory/2324-8-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral1/memory/1832-16-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral1/memory/2228-83-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral1/memory/1832-84-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral1/memory/1832-189-0x0000000000400000-0x000000000048D000-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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\dwm.exe"	cc9dc086fb0bfa15c1bbc2a67185f44f_JaffaCakes118.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/2324-8-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral1/memory/2324-7-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral1/memory/2324-5-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral1/memory/1832-2-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral1/memory/1832-16-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral1/memory/2228-81-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral1/memory/2228-83-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral1/memory/1832-84-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral1/memory/1832-189-0x0000000000400000-0x000000000048D000-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	cc9dc086fb0bfa15c1bbc2a67185f44f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cc9dc086fb0bfa15c1bbc2a67185f44f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cc9dc086fb0bfa15c1bbc2a67185f44f_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1832 wrote to memory of 2324	1832	cc9dc086fb0bfa15c1bbc2a67185f44f_JaffaCakes118.exe	30
PID 1832 wrote to memory of 2324	1832	cc9dc086fb0bfa15c1bbc2a67185f44f_JaffaCakes118.exe	30
PID 1832 wrote to memory of 2324	1832	cc9dc086fb0bfa15c1bbc2a67185f44f_JaffaCakes118.exe	30
PID 1832 wrote to memory of 2324	1832	cc9dc086fb0bfa15c1bbc2a67185f44f_JaffaCakes118.exe	30
PID 1832 wrote to memory of 2228	1832	cc9dc086fb0bfa15c1bbc2a67185f44f_JaffaCakes118.exe	33
PID 1832 wrote to memory of 2228	1832	cc9dc086fb0bfa15c1bbc2a67185f44f_JaffaCakes118.exe	33
PID 1832 wrote to memory of 2228	1832	cc9dc086fb0bfa15c1bbc2a67185f44f_JaffaCakes118.exe	33
PID 1832 wrote to memory of 2228	1832	cc9dc086fb0bfa15c1bbc2a67185f44f_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\cc9dc086fb0bfa15c1bbc2a67185f44f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cc9dc086fb0bfa15c1bbc2a67185f44f_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1832
- C:\Users\Admin\AppData\Local\Temp\cc9dc086fb0bfa15c1bbc2a67185f44f_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\cc9dc086fb0bfa15c1bbc2a67185f44f_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2324
- C:\Users\Admin\AppData\Local\Temp\cc9dc086fb0bfa15c1bbc2a67185f44f_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\cc9dc086fb0bfa15c1bbc2a67185f44f_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2228

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\56C7.B5E

Filesize
1KB

MD5
86ee1b8203ccbdc062cb7af351ebe0c1

SHA1
2fd2354c6cc55e6858dd6b5331e1539ac581b9b0

SHA256
993695f387410402456c2587ce870eb5427bb104b6ed89c77ba9c5b2ca0ca3c1

SHA512
587fbd1e5d61813d91b2016589559aebbb358ca38ad65d9f124834b06fe899712d4224beadd2e4359a3e2ed67ec2abdda12163797cf54d8c37314ae07868dc00

Download Submit
C:\Users\Admin\AppData\Roaming\56C7.B5E

Filesize
600B

MD5
a251bf1c14b1062aefbe36cd19035c70

SHA1
b329d60e0c186797db7ff6ecfda5c491471a47e7

SHA256
8b69d0a64b0ebf179a5aa27af602f83b65c478af7d8de7ec502e524e41c5f176

SHA512
61c24d92983c76d107daaad379654545f357822f7ff5dc9974d8c16c0d197e49b52987f748369de22417e93ddad6234580770dbc0c407caa5572bcf47e9c273f

Download Submit
C:\Users\Admin\AppData\Roaming\56C7.B5E

Filesize
996B

MD5
cc2b8c6ecea3b1e50f3d567d67487319

SHA1
b7eebca26da1c9c9f119c7b86f8c6ac022bc2f95

SHA256
1670833b3bdc5c1d1aba3e0658d21d2d76d2d7890dee87ef5195495d5be2bba5

SHA512
8699be78fbb7c1c7b9ace132cf51c85f8d5e3771155e5cec7b710f315eb5a11a4d384952100ae8bf0475373c7cbeb919e3ca394ed321b00751234a9d60aedc66

Download Submit
memory/1832-2-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/1832-1-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/1832-16-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/1832-84-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/1832-189-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2228-81-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2228-83-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2324-8-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2324-5-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2324-7-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads