cycbot | 17c875fb6b85948075d5be4f6f887780fd1a28d901174b3a96a43bd478f2b738

General

Target

JaffaCakes118_3b29383007fb7037bab2fdd8fa9e34e5.exe
Size

169KB
MD5

3b29383007fb7037bab2fdd8fa9e34e5
SHA1

01ff35d931c930fdad49f5d1057ed4bf36905744
SHA256

17c875fb6b85948075d5be4f6f887780fd1a28d901174b3a96a43bd478f2b738
SHA512

42ee6c866a609869c01682e17b221de5a3968e37ad0fa80afa202aa3bff6184227d07424993536b257a44c5b6736fcff11253f87bfb32ddaea9e8e5c7df574f1
SSDEEP

3072:LQ9X812u2T/BjSkLKlkyHtzuRe4xvkrBlOCkGacw2bIQ1yDGb3VAFBnpurFrNgm4:LQIEjSOe6RIWCkGx0D63uF5EZBZPiqCD

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/2364-8-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/4644-14-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/4644-15-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/1676-73-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/4644-138-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/4644-172-0x0000000000400000-0x0000000000490000-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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\B1B57\\9E42C.exe"	JaffaCakes118_3b29383007fb7037bab2fdd8fa9e34e5.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4644-2-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/2364-8-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4644-14-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/4644-15-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/1676-73-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/1676-71-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4644-138-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4644-172-0x0000000000400000-0x0000000000490000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 1 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_3b29383007fb7037bab2fdd8fa9e34e5.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4644 wrote to memory of 2364	4644	JaffaCakes118_3b29383007fb7037bab2fdd8fa9e34e5.exe	84
PID 4644 wrote to memory of 2364	4644	JaffaCakes118_3b29383007fb7037bab2fdd8fa9e34e5.exe	84
PID 4644 wrote to memory of 2364	4644	JaffaCakes118_3b29383007fb7037bab2fdd8fa9e34e5.exe	84
PID 4644 wrote to memory of 1676	4644	JaffaCakes118_3b29383007fb7037bab2fdd8fa9e34e5.exe	85
PID 4644 wrote to memory of 1676	4644	JaffaCakes118_3b29383007fb7037bab2fdd8fa9e34e5.exe	85
PID 4644 wrote to memory of 1676	4644	JaffaCakes118_3b29383007fb7037bab2fdd8fa9e34e5.exe	85

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3b29383007fb7037bab2fdd8fa9e34e5.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3b29383007fb7037bab2fdd8fa9e34e5.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4644
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3b29383007fb7037bab2fdd8fa9e34e5.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3b29383007fb7037bab2fdd8fa9e34e5.exe startC:\Program Files (x86)\LP\2CCB\F46.exe%C:\Program Files (x86)\LP\2CCB
  2⤵
  PID:2364
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3b29383007fb7037bab2fdd8fa9e34e5.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3b29383007fb7037bab2fdd8fa9e34e5.exe startC:\Program Files (x86)\57B01\lvvm.exe%C:\Program Files (x86)\57B01
  2⤵
  PID:1676

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\B1B57\7B01.1B5

Filesize
1KB

MD5
06bf001e12ac3f22c9f713bdcd09cd44

SHA1
20b669dbd865296a99372daaaa26b39489d5eac1

SHA256
9152f24fc2c57597c38cd1dd4b03dbc7dc1a209c7bd5306a02919178d1293048

SHA512
d1781f729d9064640af14d2837ba5a2199617ebd01dfa3bbf6cfeae3d5ae4fd7963ecb06b5510902aaf1c95d5591f5f76765d6606442e6c7b946b370c0cf30a8

Download Submit
C:\Users\Admin\AppData\Roaming\B1B57\7B01.1B5

Filesize
600B

MD5
eec3dd0505b4f2d30278a5ccf30eab48

SHA1
87ccbc34e644684b2dceb57a70af47538264e815

SHA256
365fbc017b11e582f4dc32886eacb13936d716f75a120fe39ef021e30d9a6db2

SHA512
a20c4ef62721cb147d5f82571fd27bb642f6f689ae1518f3b35c6dcaf5638120e10224b51a009b9e375703ccc1ae6e7a3fee4cd88f36ccfa8be4e826da5cf4ad

Download Submit
C:\Users\Admin\AppData\Roaming\B1B57\7B01.1B5

Filesize
996B

MD5
227795f335a42104711ae53a4129c0b8

SHA1
249677080fb6bf233a47dcb76532010073320bfe

SHA256
b576581be834398a8c417bc4eec72597b6e4f23458843b6ecd37b79d8914a68b

SHA512
e1232c0cfba4a46c4dc1b07b72774240fc9c80d55481efaf2b5a7e350efcf19dff8091f09b4a990728d27e504978e83c47eba15eda3bb58e1550c2137b70e26f

Download Submit
memory/1676-70-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1676-73-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1676-71-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2364-8-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4644-15-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4644-14-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/4644-1-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/4644-138-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4644-2-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4644-172-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads