cycbot | 141bfdda42fd34835f3bf336b1c47d485260b716d7edba01fb6ce957dce3bd6e

General

Target

JaffaCakes118_23c859f5acb3b76c711f5289dcaf4d3e.exe
Size

167KB
MD5

23c859f5acb3b76c711f5289dcaf4d3e
SHA1

399d44ea531a2c196d31fcb4b67fdcfcc23868bb
SHA256

141bfdda42fd34835f3bf336b1c47d485260b716d7edba01fb6ce957dce3bd6e
SHA512

57c11bade69926e183b9bca11f27fc886dc098b31dd737028e41e37d953720b7ecfcb934e9363d0c724a2d52c92aa3924bd09b6a9db054b7dec7ed359c377173
SSDEEP

3072:9TG6TWmatlxf6ZbvKI8hxfX3A4uPvjrNbF7DoN18GJ8gp:9TjTja38Z2I8hxfnA3XjrNb9owG+g

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/2476-13-0x0000000000400000-0x0000000000446000-memory.dmp	family_cycbot
behavioral1/memory/572-14-0x0000000000400000-0x0000000000446000-memory.dmp	family_cycbot
behavioral1/memory/1196-80-0x0000000000400000-0x0000000000446000-memory.dmp	family_cycbot
behavioral1/memory/572-81-0x0000000000400000-0x0000000000446000-memory.dmp	family_cycbot
behavioral1/memory/572-184-0x0000000000400000-0x0000000000446000-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_23c859f5acb3b76c711f5289dcaf4d3e.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/572-2-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/2476-12-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/2476-13-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/572-14-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/1196-80-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/1196-79-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/572-81-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/572-184-0x0000000000400000-0x0000000000446000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 1 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_23c859f5acb3b76c711f5289dcaf4d3e.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 572 wrote to memory of 2476	572	JaffaCakes118_23c859f5acb3b76c711f5289dcaf4d3e.exe	29
PID 572 wrote to memory of 2476	572	JaffaCakes118_23c859f5acb3b76c711f5289dcaf4d3e.exe	29
PID 572 wrote to memory of 2476	572	JaffaCakes118_23c859f5acb3b76c711f5289dcaf4d3e.exe	29
PID 572 wrote to memory of 2476	572	JaffaCakes118_23c859f5acb3b76c711f5289dcaf4d3e.exe	29
PID 572 wrote to memory of 1196	572	JaffaCakes118_23c859f5acb3b76c711f5289dcaf4d3e.exe	31
PID 572 wrote to memory of 1196	572	JaffaCakes118_23c859f5acb3b76c711f5289dcaf4d3e.exe	31
PID 572 wrote to memory of 1196	572	JaffaCakes118_23c859f5acb3b76c711f5289dcaf4d3e.exe	31
PID 572 wrote to memory of 1196	572	JaffaCakes118_23c859f5acb3b76c711f5289dcaf4d3e.exe	31

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_23c859f5acb3b76c711f5289dcaf4d3e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_23c859f5acb3b76c711f5289dcaf4d3e.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:572
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_23c859f5acb3b76c711f5289dcaf4d3e.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_23c859f5acb3b76c711f5289dcaf4d3e.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  PID:2476
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_23c859f5acb3b76c711f5289dcaf4d3e.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_23c859f5acb3b76c711f5289dcaf4d3e.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  PID:1196

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\D5B6.BE3

Filesize
600B

MD5
433024a73f268fcda9eb5771282dab79

SHA1
6550d71cbf9f993ed04a8ffccc9c2a04f0c6caf3

SHA256
18020018b3351345ab5243487d1afcdced9f2655bba8c1c591295ab185a7c050

SHA512
f00b5cad4dee9cbb761cecdcb2e275ef4e96ee4b5a66c25739f6e375f8588667ab0e23b0a9eae66c142988d690cfa9e7b0231c41f1dc2efb19d87f3def86c73c

Download Submit
C:\Users\Admin\AppData\Roaming\D5B6.BE3

Filesize
996B

MD5
6a6410765fb00363e36b118ea799fe57

SHA1
51f94a9de6704ea27b5f87944cd9d06cec00bd83

SHA256
15878a0442989cd2a81f7fee1a33dea27f0ac131266ea4791b889bbeed8c91d8

SHA512
7152794afd8c21cce175440b2c0a62b43d8b2f1901461e898282ef77561511c7f85f7319c750635a7a09cbdfe1931be58c639b8813c8f60aac814b0d085d4d45

Download Submit
memory/572-1-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/572-2-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/572-14-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/572-81-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/572-184-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/1196-80-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/1196-79-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2476-12-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2476-13-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads