cycbot | c2118429fe56fdd6dd1bbec6188f17607dca4bac34a9f261f80c207d0b998f6f

General

Target

f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe
Size

173KB
MD5

f347997834ea746d2d2de22e7dd7987d
SHA1

e418225e34a856e2f2908eb4578cb3f29ff8f94c
SHA256

c2118429fe56fdd6dd1bbec6188f17607dca4bac34a9f261f80c207d0b998f6f
SHA512

33b0992c70f4d9d2db69a7f304c880143890372f91fa846bd261615724c2de9dbab284dda86ab43f06f15f536a18ff021ceb77f289bad79ecc27352c5e8232b8
SSDEEP

3072:CvfRJ+R8DVZfg4WbXqSFlK2Z76tTlrySOVn+7hjXjRD3d:wRM4VFzWH0cWpwuXF

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/2764-9-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral1/memory/2668-15-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral1/memory/2860-95-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral1/memory/2668-152-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral1/memory/2668-205-0x0000000000400000-0x000000000048D000-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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\dwm.exe"	f347997834ea746d2d2de22e7dd7987d_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 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2668-2-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral1/memory/2668-1-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral1/memory/2764-9-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral1/memory/2668-15-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral1/memory/2860-93-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral1/memory/2860-95-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral1/memory/2668-152-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral1/memory/2668-205-0x0000000000400000-0x000000000048D000-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	f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 2764	2668	f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe	30
PID 2668 wrote to memory of 2764	2668	f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe	30
PID 2668 wrote to memory of 2764	2668	f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe	30
PID 2668 wrote to memory of 2764	2668	f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe	30
PID 2668 wrote to memory of 2860	2668	f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe	32
PID 2668 wrote to memory of 2860	2668	f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe	32
PID 2668 wrote to memory of 2860	2668	f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe	32
PID 2668 wrote to memory of 2860	2668	f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Users\Admin\AppData\Local\Temp\f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2764
- C:\Users\Admin\AppData\Local\Temp\f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f347997834ea746d2d2de22e7dd7987d_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2860

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\94D2.DC7

Filesize
1KB

MD5
473141e05d8be102e7b01162fe4e2ad6

SHA1
90acadd63c9575b96e792ff9307e9354a587b935

SHA256
b2ef25707f99048eb0d7d28cc1c3cc2802b097be4d46f5fc9a3fa537ce2c9797

SHA512
61d1c2c1d41e1e7de805a78617a465296e4a2b4c51a413dd60e87f0236b29fb648a93937d5e2f8fb4a26d1db28c6ec45f16549d54d8cb261e99417a35609c660

Download Submit
C:\Users\Admin\AppData\Roaming\94D2.DC7

Filesize
600B

MD5
83fc44d4a5d81da0b65e5c4c34a44a9c

SHA1
b510aa8b6fd0b764773fd2124083b1d39b7ca0af

SHA256
7e7372f4b52ea78275571efea0c47ab303b0668891aacc242486d4c4c4fa3049

SHA512
444eb78ee1d2608d5b44fd3102c4dd1b29a48bbc42bf9fa058cc83b8a36c83f4ee66a3ae5271ea58c6d90cd4e73e44ea5850d95d3de3f78d5b2e35738bd7f3f8

Download Submit
C:\Users\Admin\AppData\Roaming\94D2.DC7

Filesize
996B

MD5
54834e31d1ffa50a011cd74cffd73560

SHA1
87dda08f1bd343a3a0e741386ff8886e94b161e3

SHA256
153e067ce5fdd745fd57a6505e2ca2141a76fbbc4d66b1f36da53e55b52905ce

SHA512
acd09a632e52be72a693df6398b6ab843c9076dc069bfa0b9491575a9c1f192dba7c154770201f5430a8e93b001d44aec0a38abba2164ba32ef59282001a4f2a

Download Submit
memory/2668-1-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2668-205-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2668-2-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2668-15-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2668-152-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2764-9-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2764-7-0x0000000000500000-0x0000000000600000-memory.dmp

Filesize
1024KB

Download
memory/2764-10-0x0000000000545000-0x000000000055F000-memory.dmp

Filesize
104KB

Download
memory/2860-95-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2860-93-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2860-92-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads