cycbot | 60b0f23be5357b6fe4ba355152ce85a2b28336b18b52a58f1c5e7cfab8cc61d1

General

Target

JaffaCakes118_192321974c6e8acde536a7c6f6ed7580.exe
Size

172KB
MD5

192321974c6e8acde536a7c6f6ed7580
SHA1

a54c7f1d93e59e1eadbda1430edaf1ca3c86721f
SHA256

60b0f23be5357b6fe4ba355152ce85a2b28336b18b52a58f1c5e7cfab8cc61d1
SHA512

0774c3670d8bf32aa473ec4231857329401f6df62cdb75c848d9521ff14cb005209d8e4b9296140151e68304a85159cd1ef7d31866299410ae1e704ad54a247f
SSDEEP

3072:iwBpScuZ92EGIrMKv4nhgIH5ejw0W+GDmlRWmI+N0tbCsSniCC5a:Wcu7RGyMKvehgIZF0WcLI+mINniCC5a

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 6 IoCs

Cycbot is a backdoor and trojan written in C++.

resource	yara_rule
behavioral2/memory/4596-15-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/3680-16-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/3680-17-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral2/memory/2536-128-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/3680-129-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/3680-299-0x0000000000400000-0x0000000000490000-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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\5AF6A\\B38F9.exe"	JaffaCakes118_192321974c6e8acde536a7c6f6ed7580.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3680-2-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4596-13-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4596-15-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/3680-16-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/3680-17-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral2/memory/2536-126-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/2536-128-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/3680-129-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/3680-299-0x0000000000400000-0x0000000000490000-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	JaffaCakes118_192321974c6e8acde536a7c6f6ed7580.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_192321974c6e8acde536a7c6f6ed7580.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_192321974c6e8acde536a7c6f6ed7580.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3680 wrote to memory of 4596	3680	JaffaCakes118_192321974c6e8acde536a7c6f6ed7580.exe	82
PID 3680 wrote to memory of 4596	3680	JaffaCakes118_192321974c6e8acde536a7c6f6ed7580.exe	82
PID 3680 wrote to memory of 4596	3680	JaffaCakes118_192321974c6e8acde536a7c6f6ed7580.exe	82
PID 3680 wrote to memory of 2536	3680	JaffaCakes118_192321974c6e8acde536a7c6f6ed7580.exe	88
PID 3680 wrote to memory of 2536	3680	JaffaCakes118_192321974c6e8acde536a7c6f6ed7580.exe	88
PID 3680 wrote to memory of 2536	3680	JaffaCakes118_192321974c6e8acde536a7c6f6ed7580.exe	88

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_192321974c6e8acde536a7c6f6ed7580.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_192321974c6e8acde536a7c6f6ed7580.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3680
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_192321974c6e8acde536a7c6f6ed7580.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_192321974c6e8acde536a7c6f6ed7580.exe startC:\Program Files (x86)\LP\F9D5\348.exe%C:\Program Files (x86)\LP\F9D5
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4596
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_192321974c6e8acde536a7c6f6ed7580.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_192321974c6e8acde536a7c6f6ed7580.exe startC:\Program Files (x86)\6A832\lvvm.exe%C:\Program Files (x86)\6A832
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2536

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\5AF6A\A832.AF6

Filesize
996B

MD5
e293344b69fc94547a530a2b8680bf5d

SHA1
ff7163d5b6d385fc75c279cd72e014559677ba67

SHA256
fdf5e1353c09defd9d8e71987c2546fd6c45ee0336754c2c2d50b1fa4ac31a0c

SHA512
73b4329f6721f1c4888f3ae4d3e6ff9a9e71ed096215acf28da20949656fb0bde25863672f4fa306647ff46f560f79193c1899c931b899e04129aa9cc72b5908

Download Submit
C:\Users\Admin\AppData\Roaming\5AF6A\A832.AF6

Filesize
1KB

MD5
2c8f4311ccc1c8ec285e6ab22af38e80

SHA1
825c4c0da554d7f6b99bb0b8c29e8432df3b241a

SHA256
289a99453a68a819845a52d9e098df592b791ee85e0a31dd7454d837e54ba3fe

SHA512
c52430a24d5a9b3e534e086ebad2e40c09f8e3ad6db4418b489221a051f5189de81c1daaf496e69d93a410d2376aa8c91227e7ceb0dcef43ebccbfecaad822e9

Download Submit
C:\Users\Admin\AppData\Roaming\5AF6A\A832.AF6

Filesize
600B

MD5
a75803ba89ae0d36a319589748ae1068

SHA1
d003a1de44f2c9fc31909837dae3766bbaa1e1e7

SHA256
0e113b4c11395ef2cc35bb21a9eb18bbc6bbe1fd8d06c46106b59b492878fc23

SHA512
0b5c5674dd6126d63f7d4f8c064cfa5f087ed24135adb63ec8336fcebfb461283e324af8830dc6c8f4e24217016532848a113a04412f847bf3002af323099f26

Download Submit
memory/2536-126-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2536-128-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3680-16-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3680-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/3680-17-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/3680-129-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3680-2-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3680-299-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4596-15-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4596-13-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4596-12-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads