cycbot | 752d0cd60368012e67bab2bd8d83f67b56bfad56b251fac7e5c80d44a5fb0684

General

Target

JaffaCakes118_6df3d652cc7983929411058cbc48df35.exe
Size

175KB
MD5

6df3d652cc7983929411058cbc48df35
SHA1

89673b7eb0b5fb60c82545ccdd30ab278be0d561
SHA256

752d0cd60368012e67bab2bd8d83f67b56bfad56b251fac7e5c80d44a5fb0684
SHA512

4b5bf6b2493101e6552305e4d7c633c8242076761d19c73daa2f2b12b7a2c22d9c5e691481d8a50fa7412d5c51940c752d7f4579ee211684be42123e226a8609
SSDEEP

3072:Ih7jRgR49a7tsjZlsTq0Rp1Gc3JWQavS6oCAShstweQx:y3K4w7tsj701wQHCvh

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/720-14-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/972-15-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/972-76-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/3256-80-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/972-186-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/972-191-0x0000000000400000-0x000000000048D000-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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\dwm.exe"	JaffaCakes118_6df3d652cc7983929411058cbc48df35.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/972-2-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/720-12-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/720-14-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/972-15-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/972-76-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/3256-79-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/3256-80-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/972-186-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/972-191-0x0000000000400000-0x000000000048D000-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	JaffaCakes118_6df3d652cc7983929411058cbc48df35.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6df3d652cc7983929411058cbc48df35.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6df3d652cc7983929411058cbc48df35.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 972 wrote to memory of 720	972	JaffaCakes118_6df3d652cc7983929411058cbc48df35.exe	82
PID 972 wrote to memory of 720	972	JaffaCakes118_6df3d652cc7983929411058cbc48df35.exe	82
PID 972 wrote to memory of 720	972	JaffaCakes118_6df3d652cc7983929411058cbc48df35.exe	82
PID 972 wrote to memory of 3256	972	JaffaCakes118_6df3d652cc7983929411058cbc48df35.exe	83
PID 972 wrote to memory of 3256	972	JaffaCakes118_6df3d652cc7983929411058cbc48df35.exe	83
PID 972 wrote to memory of 3256	972	JaffaCakes118_6df3d652cc7983929411058cbc48df35.exe	83

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6df3d652cc7983929411058cbc48df35.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6df3d652cc7983929411058cbc48df35.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:972
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6df3d652cc7983929411058cbc48df35.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6df3d652cc7983929411058cbc48df35.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:720
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6df3d652cc7983929411058cbc48df35.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6df3d652cc7983929411058cbc48df35.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3256

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\DF63.3D9

Filesize
1KB

MD5
d2eb756e7d1374858cf2b57230c19eed

SHA1
ff7de4a2bd4d32450f3ad44eb19fb134a2e809a5

SHA256
1cb790ed87736346a4b99e4c6901047c574350fa9331c29ce6e74ec64a6b6a6a

SHA512
d62f0ca1a6a4092edf7324f433eb161224d0d047f4a269211971fb0740334dc7d26fb61d7ac3ab429db339c2e198df49ee2d7689b5d7ac9be32aa060ef3698e1

Download Submit
C:\Users\Admin\AppData\Roaming\DF63.3D9

Filesize
600B

MD5
762fcb045a1b88e5ca9e4cca4bba98d9

SHA1
5b75efae181095eca3b46fddb9337600be26cb98

SHA256
17b545a58de399fd1a94d530f48a5dc2ff4f5df0afc165e8add44cdae0deef7d

SHA512
23ca415b306abd220ad134e8690952024f8b8be8f459901d6b1509f50b85d3da5dabcb9c7109bde70ec8a7d04e9238c9be8099369e5f65fbe76326757ef74f50

Download Submit
C:\Users\Admin\AppData\Roaming\DF63.3D9

Filesize
996B

MD5
c5e144a0e228fd42b1a37c298733f148

SHA1
a1a31de946a0a77ee918f49dc23214acb0563ae2

SHA256
d84fee02e725069936b75fe6ae5aa603f5c06c1c960ef3692d707dc627ea07da

SHA512
c9bfa0b09a9b6ed872a2df7e25c896f9a745c9bb6bd4cd3aabaeccb7ac2a5af52f3b4dbf560e97dcd4f92dd94ea2d5980d2b5ef18e405de1f1498621952e19b4

Download Submit
memory/720-12-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/720-14-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/972-76-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/972-1-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/972-15-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/972-2-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/972-186-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/972-191-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/3256-79-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/3256-78-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/3256-80-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads