cycbot | 5c84ea53ca85a16d74601cdee6d7b3943f9d10ea8262a9078f7bd0ddc38d3540

General

Target

e47cb440b43181cb694bc1ebb22d922d_JaffaCakes118.exe
Size

176KB
MD5

e47cb440b43181cb694bc1ebb22d922d
SHA1

1ca90c03c9060b73e74f3469d859db89819eec7c
SHA256

5c84ea53ca85a16d74601cdee6d7b3943f9d10ea8262a9078f7bd0ddc38d3540
SHA512

877d21f34de7c82210df6cde2b08cce7e4547ae94baffe7f75959cc033475393743d82b516671d8d589faff58af376de82347db3270b3bfb5979d06efae77424
SSDEEP

3072:KxCrVBXL/RVGnMVzIUA0YNue4TrKAfH8jzzKGT0kcIsnWiP4MUm2:1pQszJCNue4HZfH8jPrbuWiP4G2

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 5 IoCs

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

resource	yara_rule
behavioral2/memory/208-13-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/1280-14-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/1280-73-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/4048-76-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/1280-177-0x0000000000400000-0x0000000000490000-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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\conhost.exe"	e47cb440b43181cb694bc1ebb22d922d_JaffaCakes118.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1280-2-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/208-12-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/208-13-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/1280-14-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/1280-73-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4048-75-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4048-76-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/1280-177-0x0000000000400000-0x0000000000490000-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	e47cb440b43181cb694bc1ebb22d922d_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1280 wrote to memory of 208	1280	e47cb440b43181cb694bc1ebb22d922d_JaffaCakes118.exe	83
PID 1280 wrote to memory of 208	1280	e47cb440b43181cb694bc1ebb22d922d_JaffaCakes118.exe	83
PID 1280 wrote to memory of 208	1280	e47cb440b43181cb694bc1ebb22d922d_JaffaCakes118.exe	83
PID 1280 wrote to memory of 4048	1280	e47cb440b43181cb694bc1ebb22d922d_JaffaCakes118.exe	91
PID 1280 wrote to memory of 4048	1280	e47cb440b43181cb694bc1ebb22d922d_JaffaCakes118.exe	91
PID 1280 wrote to memory of 4048	1280	e47cb440b43181cb694bc1ebb22d922d_JaffaCakes118.exe	91

C:\Users\Admin\AppData\Local\Temp\e47cb440b43181cb694bc1ebb22d922d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e47cb440b43181cb694bc1ebb22d922d_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1280
- C:\Users\Admin\AppData\Local\Temp\e47cb440b43181cb694bc1ebb22d922d_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e47cb440b43181cb694bc1ebb22d922d_JaffaCakes118.exe startC:\Program Files (x86)\Internet Explorer\lvvm.exe%C:\Program Files (x86)\Internet Explorer
  2⤵
  PID:208
- C:\Users\Admin\AppData\Local\Temp\e47cb440b43181cb694bc1ebb22d922d_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e47cb440b43181cb694bc1ebb22d922d_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\dwm.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  PID:4048

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\0176.79C

Filesize
1KB

MD5
3d0a91df37466a9b43f3a51e62d70c0e

SHA1
7af27924324e4e18d5aa21fea46b96ee34fc4396

SHA256
33ce81429821b1625b2647c3f8f292bc6a51b880b12fc829a0d1e599c68a3614

SHA512
23518187144746916ce168759bab354639f672663ca875b2a782442d496413cb0dd09012b147f90b50ca784f85793b3f12075f1aa7ea9034f0edfa5551dc0e18

Download Submit
C:\Users\Admin\AppData\Roaming\0176.79C

Filesize
600B

MD5
140e42c94e20cf79b3f7cdbf75280d82

SHA1
b2b86c5d2de40933a955889374194259786edc05

SHA256
c38f7b9c039816e85a0936eaf1c5340367ba699e06e77017c3f80e0fcef1fbfb

SHA512
3a6038089da090afe476bbd6911c718296b003ec436a43a7090e93668dd2c840ab4cf07ec087676905861701b3ac69790ed27b8599c7071584cf20af91b6657b

Download Submit
C:\Users\Admin\AppData\Roaming\0176.79C

Filesize
996B

MD5
dba95be33e5e6e297d7ab91535822e83

SHA1
18df86c9199d0f0e373b9ca83a0aa7f22ec3c8b7

SHA256
1bbdb7a2c5ebd90345d6bdd98bc7e0528b26c16586c5caa0a915b1dfa9892d4b

SHA512
3b47a3eb5b894a460129b46b171cbe5d705068bff8654684215c7d5ea84c47b52859223cc25b2c321f4be8f041722c2f144d74d9825d944dda8463e24a0a517a

Download Submit
memory/208-12-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/208-13-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1280-1-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1280-2-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1280-14-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1280-73-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1280-177-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4048-75-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4048-76-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads