cycbot | d6d8194d2fa588da37951d70662111126c1a5fe736d4212a0892a97593192a83

General

Target

cb59c6cca06dd80f9db08748bef46bfe_JaffaCakes118.exe
Size

174KB
MD5

cb59c6cca06dd80f9db08748bef46bfe
SHA1

4324492841f23b6eccb45950870cde4ba4607883
SHA256

d6d8194d2fa588da37951d70662111126c1a5fe736d4212a0892a97593192a83
SHA512

9238e77a97beaa10519803c915d7e3fdc9367125d76fd918b6b9deef00b4f8cd7cd8e4eb7a087a8be0ccd4fadfe5442fa95405a02bb0d76a5ffdc35f4e1fbe56
SSDEEP

3072:MVFTTcUFKpCpxR8/zdH24x8pwsyTF5EvOz0eTb1DZMRl+p:MVFTTcUFaKxR8/Q4x81igOz0KDZMX+p

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++.

resource	yara_rule
behavioral2/memory/3000-15-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/2576-16-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/2576-81-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/3012-85-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/2576-200-0x0000000000400000-0x000000000048D000-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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\dwm.exe"	cb59c6cca06dd80f9db08748bef46bfe_JaffaCakes118.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2576-2-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/3000-12-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/3000-13-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/3000-15-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/2576-16-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/2576-81-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/3012-83-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/3012-85-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/2576-200-0x0000000000400000-0x000000000048D000-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	cb59c6cca06dd80f9db08748bef46bfe_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cb59c6cca06dd80f9db08748bef46bfe_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cb59c6cca06dd80f9db08748bef46bfe_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2576 wrote to memory of 3000	2576	cb59c6cca06dd80f9db08748bef46bfe_JaffaCakes118.exe	85
PID 2576 wrote to memory of 3000	2576	cb59c6cca06dd80f9db08748bef46bfe_JaffaCakes118.exe	85
PID 2576 wrote to memory of 3000	2576	cb59c6cca06dd80f9db08748bef46bfe_JaffaCakes118.exe	85
PID 2576 wrote to memory of 3012	2576	cb59c6cca06dd80f9db08748bef46bfe_JaffaCakes118.exe	93
PID 2576 wrote to memory of 3012	2576	cb59c6cca06dd80f9db08748bef46bfe_JaffaCakes118.exe	93
PID 2576 wrote to memory of 3012	2576	cb59c6cca06dd80f9db08748bef46bfe_JaffaCakes118.exe	93

C:\Users\Admin\AppData\Local\Temp\cb59c6cca06dd80f9db08748bef46bfe_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cb59c6cca06dd80f9db08748bef46bfe_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2576
- C:\Users\Admin\AppData\Local\Temp\cb59c6cca06dd80f9db08748bef46bfe_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\cb59c6cca06dd80f9db08748bef46bfe_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3000
- C:\Users\Admin\AppData\Local\Temp\cb59c6cca06dd80f9db08748bef46bfe_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\cb59c6cca06dd80f9db08748bef46bfe_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3012

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

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\8BFF.267

Filesize
1KB

MD5
304a7196386818a5a80e478233972ba0

SHA1
1f1b51dfff779459bf09892ef83726d1cd2aeaf2

SHA256
44579dce9ce20d27729311600ccde9a84aa16e7e09fc9eaa3a02cbf3a33921ab

SHA512
4fdbde05fb7b6c43e64b843a5ed6fbf6bad5346594348f4af9bbac9427bed100d0401070e3991ccd7854900bd6297abb91db9b069ca5f86900ac973fdf410700

Download Submit
C:\Users\Admin\AppData\Roaming\8BFF.267

Filesize
1KB

MD5
ed34c6f09a6e17e649179c4194dd1788

SHA1
cb77024864295cf091b4263f1e87f7eafc2c5202

SHA256
3f951d3ea1f91e734c205b3228280cb52b2c025ea9c086490add087ae4d59aa9

SHA512
9f7a132cc17dedc935b232e71bbd19fc12c1d301b67e98903c9a81ac63f4ba3cc3a4939931bb778f4b30d069b6fc9a21a77efd6bd444c7957820ed6207b070ca

Download Submit
C:\Users\Admin\AppData\Roaming\8BFF.267

Filesize
600B

MD5
fdea89cd73f17a7fd8a65c84a42682a4

SHA1
6f8f52566d1b70e8c7d528a702c04c20f1731749

SHA256
9034c4e8b15ce104e2eee5ca8e9fe775ed4a2bcec5708b960eed024a7e795ce0

SHA512
9a062ef8842f082066848b5777ac9f1d48ccce948b6596a6eede1affa1947e58e55df214f22943fc3de1b72d2b00c756451461d6075d404cc9062b954a0f4bed

Download Submit
C:\Users\Admin\AppData\Roaming\8BFF.267

Filesize
996B

MD5
35a58d1671a578f439cef5dca9e7d174

SHA1
65b096f6f3c129b0c267cfcd011f45baa4e7a7ce

SHA256
07068d8ee6c9bfaeca35ab7df0941b72ee2d5317fe2983c6608c4d38ab38c6e6

SHA512
6a7809f98276d8319240004d736265539bf8dfcfa115c018b2ec383d353feea406c77555103ffc2071c3e09933bee123bb51592c2d371ac9e6acd97e7f48dd13

Download Submit
memory/2576-2-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2576-200-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2576-1-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2576-16-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2576-81-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/3000-13-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/3000-15-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/3000-12-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/3012-85-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/3012-83-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads