cycbot | 192b3c07d7331b338bc400ca0b8c12dfea74fed83363992a801e6d0e1654884a

General

Target

ee314beed37dd444c4a6b1c5f6de4487_JaffaCakes118.exe
Size

169KB
MD5

ee314beed37dd444c4a6b1c5f6de4487
SHA1

17787582760b4522cc92ac218df3c3774a5b38cc
SHA256

192b3c07d7331b338bc400ca0b8c12dfea74fed83363992a801e6d0e1654884a
SHA512

3d6ae0cf2ba47e9d7b40a5ebc2df1f0394094ce1906875365978e16f885fbb1a18e6ad018b380b08bc47636677a8b311f74ebf1f50aa87cf662862bb5038d64a
SSDEEP

3072:ZYGy9/koA4KzZRZtDb6n7MckPJHgqH9OZxG8YT1jKbvwuCXhgbGtV4tNIHlol49b:WGyNkhfHDEGxgrxpYTNLGtNIul49qSMQ

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/3184-14-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/4348-15-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/4348-16-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral2/memory/4724-79-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/4348-80-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/4348-186-0x0000000000400000-0x0000000000491000-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\\BA48B\\AEBE9.exe"	ee314beed37dd444c4a6b1c5f6de4487_JaffaCakes118.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4348-2-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/3184-13-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/3184-14-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4348-15-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4348-16-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral2/memory/4724-77-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4724-79-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4348-80-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4348-186-0x0000000000400000-0x0000000000491000-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	ee314beed37dd444c4a6b1c5f6de4487_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ee314beed37dd444c4a6b1c5f6de4487_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ee314beed37dd444c4a6b1c5f6de4487_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4348 wrote to memory of 3184	4348	ee314beed37dd444c4a6b1c5f6de4487_JaffaCakes118.exe	82
PID 4348 wrote to memory of 3184	4348	ee314beed37dd444c4a6b1c5f6de4487_JaffaCakes118.exe	82
PID 4348 wrote to memory of 3184	4348	ee314beed37dd444c4a6b1c5f6de4487_JaffaCakes118.exe	82
PID 4348 wrote to memory of 4724	4348	ee314beed37dd444c4a6b1c5f6de4487_JaffaCakes118.exe	88
PID 4348 wrote to memory of 4724	4348	ee314beed37dd444c4a6b1c5f6de4487_JaffaCakes118.exe	88
PID 4348 wrote to memory of 4724	4348	ee314beed37dd444c4a6b1c5f6de4487_JaffaCakes118.exe	88

C:\Users\Admin\AppData\Local\Temp\ee314beed37dd444c4a6b1c5f6de4487_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ee314beed37dd444c4a6b1c5f6de4487_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4348
- C:\Users\Admin\AppData\Local\Temp\ee314beed37dd444c4a6b1c5f6de4487_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\ee314beed37dd444c4a6b1c5f6de4487_JaffaCakes118.exe startC:\Program Files (x86)\LP\E93B\873.exe%C:\Program Files (x86)\LP\E93B
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3184
- C:\Users\Admin\AppData\Local\Temp\ee314beed37dd444c4a6b1c5f6de4487_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\ee314beed37dd444c4a6b1c5f6de4487_JaffaCakes118.exe startC:\Program Files (x86)\8BF53\lvvm.exe%C:\Program Files (x86)\8BF53
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4724

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\BA48B\BF53.A48

Filesize
1KB

MD5
fb0f0d1c8e84c3fb406cfc67d566c54c

SHA1
c15a347db8be79f3a4c0d7fc0e4555acc1246c25

SHA256
a1bfded379e077685ee8f89af903816774d84a3042342442639f1a6f288e8fbf

SHA512
810d12faafdf8c4a2273082467f54cde176e57e7688d749bac4b3c505d7dade744f06e4591cc6f2ce0ca243861fbda2c7433d7c05ad656137ad30fa159f8a98b

Download Submit
C:\Users\Admin\AppData\Roaming\BA48B\BF53.A48

Filesize
600B

MD5
512c6e20d70d414ff4df3694a8dc3cdd

SHA1
361280ad7f9dcc09211e070c151ee9b8caa6391a

SHA256
651b68322883f4d682578dfdd5c7181e474b1b742ed2c034fc1ffb9f9d007ef5

SHA512
bb3c2b80d057ddbdaa87643db370faa3b5532cbaaeea43a70be5622cb0005b8c2ce30af9817ee93d590236b1429ca7ff11bd7496ab977e4bf493fe83bea8e6cb

Download Submit
C:\Users\Admin\AppData\Roaming\BA48B\BF53.A48

Filesize
996B

MD5
694694aa1a23433babce412f269e98f4

SHA1
b77468d806dde2fb2f114611dd599fa3451e6972

SHA256
0da07c45e46081c8ae7bb968c2721eeb6bb3d89df619df1fbdd7fbb68c4b892c

SHA512
e0544ad7fd41f62f206409b7f63f8a8d5061465a02c5c687abac41f1466a110bc1534e84affb4d47e4877801de96e6bd45dc57eecff0adcbed9f81f477d5a30a

Download Submit
memory/3184-12-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3184-13-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3184-14-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4348-16-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/4348-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/4348-80-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4348-15-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4348-2-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4348-186-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4724-77-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4724-79-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads