cycbot | 2125a1e00be1bd129634cdd69d9540a4c49ae1864702547ada32ec70da42c95c

General

Target

JaffaCakes118_3be07720d75271452be60d7ea80d508a.exe
Size

177KB
MD5

3be07720d75271452be60d7ea80d508a
SHA1

ce8685fbc1a0ef90eab3911b64e3cfebd60238c2
SHA256

2125a1e00be1bd129634cdd69d9540a4c49ae1864702547ada32ec70da42c95c
SHA512

375a01be852e44e3025b06f6cc58902fd12f465c028cdbe28e537218b27e00ce81fa6c038c13aae49632a1e3aea1229086dade40721f509c9f022794113af897
SSDEEP

3072:AWdbPR3RVFNvm8L8ds89HNnXbIygHVP3txJDnWUUXK6sAkqOjwPp1ipLitl9:XhPRH/vfL8dV9HNMygHVPrVWUUXK8kqt

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/1324-14-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/4420-15-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/4420-16-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral2/memory/4348-135-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/4420-136-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/4420-314-0x0000000000400000-0x0000000000491000-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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\A6092\\B38F9.exe"	JaffaCakes118_3be07720d75271452be60d7ea80d508a.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4420-2-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/1324-13-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/1324-14-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4420-15-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4420-16-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral2/memory/4348-133-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4348-135-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4420-136-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4420-314-0x0000000000400000-0x0000000000491000-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	JaffaCakes118_3be07720d75271452be60d7ea80d508a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3be07720d75271452be60d7ea80d508a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3be07720d75271452be60d7ea80d508a.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4420 wrote to memory of 1324	4420	JaffaCakes118_3be07720d75271452be60d7ea80d508a.exe	82
PID 4420 wrote to memory of 1324	4420	JaffaCakes118_3be07720d75271452be60d7ea80d508a.exe	82
PID 4420 wrote to memory of 1324	4420	JaffaCakes118_3be07720d75271452be60d7ea80d508a.exe	82
PID 4420 wrote to memory of 4348	4420	JaffaCakes118_3be07720d75271452be60d7ea80d508a.exe	90
PID 4420 wrote to memory of 4348	4420	JaffaCakes118_3be07720d75271452be60d7ea80d508a.exe	90
PID 4420 wrote to memory of 4348	4420	JaffaCakes118_3be07720d75271452be60d7ea80d508a.exe	90

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3be07720d75271452be60d7ea80d508a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3be07720d75271452be60d7ea80d508a.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4420
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3be07720d75271452be60d7ea80d508a.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3be07720d75271452be60d7ea80d508a.exe startC:\Program Files (x86)\LP\F9DA\348.exe%C:\Program Files (x86)\LP\F9DA
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1324
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3be07720d75271452be60d7ea80d508a.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3be07720d75271452be60d7ea80d508a.exe startC:\Program Files (x86)\92A7F\lvvm.exe%C:\Program Files (x86)\92A7F
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4348

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\A6092\2A7F.609

Filesize
996B

MD5
11fd5bc962f6f776ae2c842c30b4cc7a

SHA1
46ae977176f4a3c180df5ec00b9b91528b75f923

SHA256
ab12721337ee068ff1dc7aaae0f3bdc82317e604b0668a55224fa8388ceac83e

SHA512
2ffecb24bb1b2a94fd93ed0f34ba2ec33998f9f431e50120f6b140492dd1c54d712103f24b4d910a2c5cc736f32f4ac868dbae25666b0a9c233f9ef26ccb4072

Download Submit
C:\Users\Admin\AppData\Roaming\A6092\2A7F.609

Filesize
600B

MD5
e74acae5634f51fa12ee429b6df95942

SHA1
f19c5fcfd60da0bf48f223e5166cab6339fa2cac

SHA256
931277106c9f82c9553933de7832e17cb45fbfdc4fa8b1c962db367295ab1a6c

SHA512
e3a47cde9ee72570fad3f222c532907735d44b63259dc11fd9c2aa3731bba1e72d7af1569f3a8f8b94a011de57e2bee12932bb2fb2793685632caefeb6187875

Download Submit
C:\Users\Admin\AppData\Roaming\A6092\2A7F.609

Filesize
1KB

MD5
e27b80442751eae4183fff20cdadbea1

SHA1
39b5f0f943143c86a401287a8a35755a5710ce3a

SHA256
aacca25c8d09b485ffbee7794e4da463170eddc54c92a32cae48e4b0251c998a

SHA512
45cd867eec56779455fffc51b30da753f89c1ffe6e229b726c4baaad05119d953dc75f7bb45a79782b7287ab8c45084c917aa9c652ddf359351c5f9287792505

Download Submit
memory/1324-13-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/1324-12-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/1324-14-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4348-135-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4348-133-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4420-16-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/4420-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/4420-136-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4420-15-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4420-2-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4420-314-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads