cycbot | ff858a4d5cab27b1a7d233d7dc1ec1c5e257771d6b89c6ad64d885eb64bba680

General

Target

ffef7b6ce67f6d552512b84959bd5946_JaffaCakes118.exe
Size

190KB
MD5

ffef7b6ce67f6d552512b84959bd5946
SHA1

3e063d34585d30f8a2bbb3fd19ad442a71eed565
SHA256

ff858a4d5cab27b1a7d233d7dc1ec1c5e257771d6b89c6ad64d885eb64bba680
SHA512

44ac0a6b822d3180278a8e85f41cd6e75749aba830aa9ac3f6d626b50b841c9d238aeac1dfb3543e74bfcb543c1a89b38f8cabdd38f4cbf3b2654bbf2cca37ed
SSDEEP

3072:1PObSL/3abnZm0cK85d8G4SbjUjvPI9yomurmtU6vr/woTkTjqsQ6vB3Q0NqfVRM:1cSz3Ovsd8vSbjUjHmxrmeQTkHPNqfVk

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/1936-6-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2528-14-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2528-68-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/1052-72-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2528-177-0x0000000000400000-0x0000000000445000-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"	ffef7b6ce67f6d552512b84959bd5946_JaffaCakes118.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2528-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/1936-5-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/1936-6-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2528-14-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2528-68-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/1052-72-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2528-177-0x0000000000400000-0x0000000000445000-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	ffef7b6ce67f6d552512b84959bd5946_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ffef7b6ce67f6d552512b84959bd5946_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ffef7b6ce67f6d552512b84959bd5946_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2528 wrote to memory of 1936	2528	ffef7b6ce67f6d552512b84959bd5946_JaffaCakes118.exe	30
PID 2528 wrote to memory of 1936	2528	ffef7b6ce67f6d552512b84959bd5946_JaffaCakes118.exe	30
PID 2528 wrote to memory of 1936	2528	ffef7b6ce67f6d552512b84959bd5946_JaffaCakes118.exe	30
PID 2528 wrote to memory of 1936	2528	ffef7b6ce67f6d552512b84959bd5946_JaffaCakes118.exe	30
PID 2528 wrote to memory of 1052	2528	ffef7b6ce67f6d552512b84959bd5946_JaffaCakes118.exe	33
PID 2528 wrote to memory of 1052	2528	ffef7b6ce67f6d552512b84959bd5946_JaffaCakes118.exe	33
PID 2528 wrote to memory of 1052	2528	ffef7b6ce67f6d552512b84959bd5946_JaffaCakes118.exe	33
PID 2528 wrote to memory of 1052	2528	ffef7b6ce67f6d552512b84959bd5946_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\ffef7b6ce67f6d552512b84959bd5946_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ffef7b6ce67f6d552512b84959bd5946_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2528
- C:\Users\Admin\AppData\Local\Temp\ffef7b6ce67f6d552512b84959bd5946_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\ffef7b6ce67f6d552512b84959bd5946_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1936
- C:\Users\Admin\AppData\Local\Temp\ffef7b6ce67f6d552512b84959bd5946_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\ffef7b6ce67f6d552512b84959bd5946_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1052

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\70B9.6E2

Filesize
1KB

MD5
01df4cc4a841b070b155c8ef88eba5f9

SHA1
3e0a9dbb3de24fbc911a3e98af6a0f7e175689c3

SHA256
b9b8bfd80394951e14e1bbe1287a89e96931541d266cb7248f060a88b171c7a3

SHA512
e8be1a4c28d0e93e07cd66489fbac44cd0f7c9327ff0ec828870f237edd78480ff0944e5e1b50f78475ec92cf0dd44f1ebde4d819653cf34d6ad0d2d951446ee

Download Submit
C:\Users\Admin\AppData\Roaming\70B9.6E2

Filesize
600B

MD5
078885cc0e9fa994d21bb70c3ab9447b

SHA1
c24866ea0f4c312ea6181cac018a4f7c89476846

SHA256
8952d314c9d01f05fa240b69fb7b6cf2b0b48cb73aac94c7f447b96f9bf96c89

SHA512
2344cfeb3e12b7ee760d2d3cd7539c4d99f81cd2748fdc79a90cc97a851a4f49eee34bd2bac5bac8ab0173ef84df77be9cd298aef19fe5aa6cbbd7debe8f7b7b

Download Submit
C:\Users\Admin\AppData\Roaming\70B9.6E2

Filesize
996B

MD5
9d3e04671dc819dad9457ecd37fccd53

SHA1
3654222a9def5c0b095118ee1237833989a2c24e

SHA256
a722f9d0f992e45049c2fa7c380f4952e75602bd4ef8774fe45b36cbf604b4a6

SHA512
63eae068cda5572b75dfece6c73152b3a337611c2438a31a183e38f23a4863c6677562d60930c403d10c39ed82425d8a9df31df5f4bc55ab5fb4186d3a3161fd

Download Submit
memory/1052-70-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1052-72-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1936-5-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1936-6-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2528-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2528-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2528-14-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2528-68-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2528-177-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads