cycbot | 24c257f203f64979963f984e6c4f85a97b143142948da3a78c99aaf0fbe685f8

General

Target

JaffaCakes118_b3b6beba0bbb2e743984f2aaf04a0de6.exe
Size

163KB
MD5

b3b6beba0bbb2e743984f2aaf04a0de6
SHA1

e847bed785b22f6968824b20292a474c83cd9093
SHA256

24c257f203f64979963f984e6c4f85a97b143142948da3a78c99aaf0fbe685f8
SHA512

51147fc2e27ab89a2b39eceeb6de89a80fb6b55ff372978d0a48a1d1607b336a88182dd118073529942cda63100716aef5108404e9b0618ce8d6d033062f28eb
SSDEEP

3072:2oDKAEBxCNAikKLFJRdWm/KRMF99GR+WXUeiaFsYx/OFCVWwvSB:RaBwKiFZdCspWziaF92MVWGS

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/1372-14-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/2764-15-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/2764-16-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral2/memory/2928-113-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/2764-114-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/2764-273-0x0000000000400000-0x0000000000490000-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\\B56FB\\85BB8.exe"	JaffaCakes118_b3b6beba0bbb2e743984f2aaf04a0de6.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2764-2-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/1372-13-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/1372-14-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/2764-15-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/2764-16-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral2/memory/2928-113-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/2764-114-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/2764-273-0x0000000000400000-0x0000000000490000-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_b3b6beba0bbb2e743984f2aaf04a0de6.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2764 wrote to memory of 1372	2764	JaffaCakes118_b3b6beba0bbb2e743984f2aaf04a0de6.exe	84
PID 2764 wrote to memory of 1372	2764	JaffaCakes118_b3b6beba0bbb2e743984f2aaf04a0de6.exe	84
PID 2764 wrote to memory of 1372	2764	JaffaCakes118_b3b6beba0bbb2e743984f2aaf04a0de6.exe	84
PID 2764 wrote to memory of 2928	2764	JaffaCakes118_b3b6beba0bbb2e743984f2aaf04a0de6.exe	87
PID 2764 wrote to memory of 2928	2764	JaffaCakes118_b3b6beba0bbb2e743984f2aaf04a0de6.exe	87
PID 2764 wrote to memory of 2928	2764	JaffaCakes118_b3b6beba0bbb2e743984f2aaf04a0de6.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b3b6beba0bbb2e743984f2aaf04a0de6.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b3b6beba0bbb2e743984f2aaf04a0de6.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2764
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b3b6beba0bbb2e743984f2aaf04a0de6.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b3b6beba0bbb2e743984f2aaf04a0de6.exe startC:\Program Files (x86)\LP\B83B\B6C.exe%C:\Program Files (x86)\LP\B83B
  2⤵
  PID:1372
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b3b6beba0bbb2e743984f2aaf04a0de6.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b3b6beba0bbb2e743984f2aaf04a0de6.exe startC:\Program Files (x86)\FB22F\lvvm.exe%C:\Program Files (x86)\FB22F
  2⤵
  PID:2928

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\B56FB\B22F.56F

Filesize
996B

MD5
3f8e0a7c403eebfe8cbdc743da838fec

SHA1
bfda57b1812687be86b07621dd81b13b6f4b50d0

SHA256
c095558df3d2e20235d5effe572dc90c0afdc02ece97977f6682b41b08d1f04a

SHA512
6203959768d94586d84d5a9c9b0fdac69e68f6cf4583e948be3d1fa8022a393014cc93a14956a49651d19189fc4dd8d6cbb4038356346b0957b420d5aae5f40c

Download Submit
C:\Users\Admin\AppData\Roaming\B56FB\B22F.56F

Filesize
600B

MD5
941878dc0c3c36a9b2e9ee40654d6f0a

SHA1
b948f3da7600f7c1992f084523863d8f01320862

SHA256
73988165aa109a7e0fe8243b15e5d596da682a9024718cd4c1c1536a77cef365

SHA512
05182685ce97a23b7e05026971c4170919da08ebcd9e2b6842efe3c67b45561468d473fa88d567fd65dbb541e1d1818c3f73d7ce24fc6c022d009dd991c70b15

Download Submit
C:\Users\Admin\AppData\Roaming\B56FB\B22F.56F

Filesize
1KB

MD5
dc4641fb71733a1e9fae7de4d34b6e44

SHA1
11f3127be1e8910b96db093fb566936b32fb3cae

SHA256
5b5613186d471a00b8ca231b511ee3780187340fdc3e80a58d08f392facca5ce

SHA512
2b0d4f3cc4d3ef7c853a9a077313c801607a7c888d338b26d1b85e257893da3611975ab5a6235458bb5054c61dabbe31490ace306c664f9fd1b3c98b3f447d2b

Download Submit
memory/1372-13-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1372-12-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1372-14-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2764-16-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2764-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2764-114-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2764-15-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2764-2-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2764-273-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2928-113-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads