cycbot | 17664145227c0fd867345333448b0f13228d2214c2e7299918aa133e28e1c5db

General

Target

9311b14b478c3c60e04e806960c58f73_JaffaCakes118.exe
Size

174KB
MD5

9311b14b478c3c60e04e806960c58f73
SHA1

3a19ecc1dce54ffd892f9ce900482f1df9198f14
SHA256

17664145227c0fd867345333448b0f13228d2214c2e7299918aa133e28e1c5db
SHA512

766740b601c2ac935ce354318672b50ec9669a7fa377df0030da3aebdd24e961d0ac7c0ab30bbbbed1bb14423d7a5bf6e821a462a7417cce301d6273532f1836
SSDEEP

3072:epzzsJBolVdQbqRiicVMRzuEWmRlp5hRCsRpX04bvbNjdP4a5ZDOWC:m/eBoHdQbqRpcVMNufmRl2cpX04vNjhu

Score

10^/10

cycbot backdoor discovery persistence rat 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++.

Processes:

resource	yara_rule
behavioral2/memory/3800-10-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/2464-15-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/2464-83-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/4464-87-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/2464-189-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

9311b14b478c3c60e04e806960c58f73_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\conhost = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\conhost.exe"	9311b14b478c3c60e04e806960c58f73_JaffaCakes118.exe

UPX packed file 7 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/2464-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/3800-8-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/3800-10-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/2464-15-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/2464-83-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4464-87-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/2464-189-0x0000000000400000-0x0000000000445000-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

Processes:

9311b14b478c3c60e04e806960c58f73_JaffaCakes118.exe9311b14b478c3c60e04e806960c58f73_JaffaCakes118.exe9311b14b478c3c60e04e806960c58f73_JaffaCakes118.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9311b14b478c3c60e04e806960c58f73_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9311b14b478c3c60e04e806960c58f73_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9311b14b478c3c60e04e806960c58f73_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

9311b14b478c3c60e04e806960c58f73_JaffaCakes118.exe

description	pid	Process	procid_target
PID 2464 wrote to memory of 3800	2464	9311b14b478c3c60e04e806960c58f73_JaffaCakes118.exe	83
PID 2464 wrote to memory of 3800	2464	9311b14b478c3c60e04e806960c58f73_JaffaCakes118.exe	83
PID 2464 wrote to memory of 3800	2464	9311b14b478c3c60e04e806960c58f73_JaffaCakes118.exe	83
PID 2464 wrote to memory of 4464	2464	9311b14b478c3c60e04e806960c58f73_JaffaCakes118.exe	95
PID 2464 wrote to memory of 4464	2464	9311b14b478c3c60e04e806960c58f73_JaffaCakes118.exe	95
PID 2464 wrote to memory of 4464	2464	9311b14b478c3c60e04e806960c58f73_JaffaCakes118.exe	95

C:\Users\Admin\AppData\Local\Temp\9311b14b478c3c60e04e806960c58f73_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\9311b14b478c3c60e04e806960c58f73_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2464
- C:\Users\Admin\AppData\Local\Temp\9311b14b478c3c60e04e806960c58f73_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\9311b14b478c3c60e04e806960c58f73_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3800
- C:\Users\Admin\AppData\Local\Temp\9311b14b478c3c60e04e806960c58f73_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\9311b14b478c3c60e04e806960c58f73_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4464

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

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\1912.550

Filesize
600B

MD5
1c14a4cdaa5b2d32d548f8a6db756b39

SHA1
51d48d3abb1ea08f8c9702c64e8c556a815e79f8

SHA256
77b90a76bbad6133d885d0f8b2204dd10b764e5005852e3379d1c9d0d836801f

SHA512
c7d046dad0f031b9177bfe6cab32e3f490bffa4d9f84a75e3511a329752893377908fc6d6541cae4ccef53f5282d1644666496162827629994b4a7fa52058165

Download Submit
C:\Users\Admin\AppData\Roaming\1912.550

Filesize
996B

MD5
08523e4a62ef6c59295299bfbde337ce

SHA1
cca73f64229a481475ea8f9b2691a05033760ccb

SHA256
f0702f31ce47c6d22ac5eb94784cce2b56c7f53ff3610c961217c9c93b527227

SHA512
7d2467fbba31d37bfee59c26f74462b153d1331be13800fa60a8d749b3f036e0bbc4a0927ac64b4be819d83e5aa0c2f07b6bae2b6538af288204da8e888eb40d

Download Submit
memory/2464-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2464-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2464-15-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2464-83-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2464-189-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3800-8-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3800-10-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4464-85-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4464-87-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads