cycbot | 17130b19c4f253fc868435a307feacc17ca163a23f5624243fb627b19ba544a0

General

Target

JaffaCakes118_7ac3fe0174fde0e9d7cf160feccd7d36.exe
Size

163KB
MD5

7ac3fe0174fde0e9d7cf160feccd7d36
SHA1

d8164e8b9785fc64e8f6dab6007420cecf731291
SHA256

17130b19c4f253fc868435a307feacc17ca163a23f5624243fb627b19ba544a0
SHA512

6e273ac47b862f8c9de33695010f9755ce48af3d9a8c75234735b60c953acd68ad3de80580cf5fb7fdfa80dafe8f9c122f88ea984feabb24f5d45a37abc0a872
SSDEEP

3072:Za3Oc7/KTefrrHMqvw7kIKuj1hZWzRj1qKwx5+c2BHj9ivA:ZFc7/AeJvw7XLjdWB19RxHM

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/4860-15-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/1456-16-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/1456-17-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral2/memory/2772-140-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/1456-141-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/1456-303-0x0000000000400000-0x0000000000490000-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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\5DCA9\\FAC6D.exe"	JaffaCakes118_7ac3fe0174fde0e9d7cf160feccd7d36.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1456-2-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4860-13-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4860-12-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4860-15-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/1456-16-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/1456-17-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral2/memory/2772-139-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/2772-140-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/1456-141-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/1456-303-0x0000000000400000-0x0000000000490000-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_7ac3fe0174fde0e9d7cf160feccd7d36.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1456 wrote to memory of 4860	1456	JaffaCakes118_7ac3fe0174fde0e9d7cf160feccd7d36.exe	86
PID 1456 wrote to memory of 4860	1456	JaffaCakes118_7ac3fe0174fde0e9d7cf160feccd7d36.exe	86
PID 1456 wrote to memory of 4860	1456	JaffaCakes118_7ac3fe0174fde0e9d7cf160feccd7d36.exe	86
PID 1456 wrote to memory of 2772	1456	JaffaCakes118_7ac3fe0174fde0e9d7cf160feccd7d36.exe	99
PID 1456 wrote to memory of 2772	1456	JaffaCakes118_7ac3fe0174fde0e9d7cf160feccd7d36.exe	99
PID 1456 wrote to memory of 2772	1456	JaffaCakes118_7ac3fe0174fde0e9d7cf160feccd7d36.exe	99

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7ac3fe0174fde0e9d7cf160feccd7d36.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7ac3fe0174fde0e9d7cf160feccd7d36.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1456
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7ac3fe0174fde0e9d7cf160feccd7d36.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7ac3fe0174fde0e9d7cf160feccd7d36.exe startC:\Program Files (x86)\LP\6D35\35B.exe%C:\Program Files (x86)\LP\6D35
  2⤵
  PID:4860
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7ac3fe0174fde0e9d7cf160feccd7d36.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7ac3fe0174fde0e9d7cf160feccd7d36.exe startC:\Program Files (x86)\A9D5B\lvvm.exe%C:\Program Files (x86)\A9D5B
  2⤵
  PID:2772

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\5DCA9\9D5B.DCA

Filesize
996B

MD5
5b792e59197c41b2ba2ca0df145448f7

SHA1
2ecc1c14f8e404458698f84bf93fc2b64f10d002

SHA256
7975e487540a3fa53773f0b050caf8e89406794c4682cc93731a180502bab9f6

SHA512
87c1015773dc0ddcfd73e976aca8163102ec426512d908a6597ef9bb284e60d765cdc432c2e904c5f99a91acbc0c218b6099e2b7cf75f1dfaeb89065e09d41f8

Download Submit
C:\Users\Admin\AppData\Roaming\5DCA9\9D5B.DCA

Filesize
600B

MD5
5cb6353a4b978dc35bd5d0928cfd79c3

SHA1
acef5fde57d99aa415f67eb31b30ff8090713e85

SHA256
b5d69e61429a3066937a08226cb71cf307cf55434132d58881630607005d928c

SHA512
6a769b456d0b8fc9282c0f40462a168daaeba4d43317949e8e1bd69162f655df3c9a02c71c5dc812cf858f17e2bfdf81ddceecc2acb172e027e010f2f792e673

Download Submit
C:\Users\Admin\AppData\Roaming\5DCA9\9D5B.DCA

Filesize
1KB

MD5
ce69ec2867e7f025a0daffa8d7c1f506

SHA1
3e8b088f691363422d64b3647a3b841b2c490968

SHA256
06e1124ec0b27d5fc18dbee723d3135d147ed2eeb935e958316b1291e9812ffb

SHA512
f68236e3dc8d20437d15bb3c9e18671ff0994f7a6103cf2a18d905781ae33d9fc94685beb11202fa99a1685a72d449b5637a99844f91cd9940a626c41b90c35c

Download Submit
memory/1456-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/1456-2-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1456-303-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1456-16-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1456-17-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/1456-141-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2772-138-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2772-140-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2772-139-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4860-15-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4860-12-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4860-13-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads