cycbot | 4d54eef01bc3accd66f74a458ad3d1ea55a00678174121677466c27c15692811

General

Target

JaffaCakes118_abf0ec93f206d7b215f7b3d6f68fe1f5.exe
Size

207KB
MD5

abf0ec93f206d7b215f7b3d6f68fe1f5
SHA1

19d60e9b6cac841eaff4c4b8a98faa89f20929a4
SHA256

4d54eef01bc3accd66f74a458ad3d1ea55a00678174121677466c27c15692811
SHA512

4cdcb62285983d968bbdb3c8f6d077ba807a7d75092db60f18fec785d2d7a9f6818f6921f303f9cbdeaf372d7af04f67116d3efe8b19e7d3f31d935a14e193ea
SSDEEP

6144:HXyNYcXMbt2ohgdqNgxiQFhsGIyQ4IUfO4:HCNfcb3hgd8miAFxIUfO4

Score

10^/10

cycbot backdoor discovery rat upx

Malware Config

Signatures

Cycbot
Cycbot is a backdoor and trojan written in C++..
backdoor rat cycbot
Cycbot family
cycbot

Detects Cycbot payload 4 IoCs

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

resource	yara_rule
behavioral2/memory/4540-13-0x0000000000400000-0x000000000044D000-memory.dmp	family_cycbot
behavioral2/memory/2716-14-0x0000000000400000-0x000000000044D000-memory.dmp	family_cycbot
behavioral2/memory/2708-82-0x0000000000400000-0x000000000044D000-memory.dmp	family_cycbot
behavioral2/memory/2716-193-0x0000000000400000-0x000000000044D000-memory.dmp	family_cycbot

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2716-2-0x0000000000400000-0x000000000044D000-memory.dmp	upx
behavioral2/memory/4540-12-0x0000000000400000-0x000000000044D000-memory.dmp	upx
behavioral2/memory/4540-13-0x0000000000400000-0x000000000044D000-memory.dmp	upx
behavioral2/memory/2716-14-0x0000000000400000-0x000000000044D000-memory.dmp	upx
behavioral2/memory/2708-80-0x0000000000400000-0x000000000044D000-memory.dmp	upx
behavioral2/memory/2708-82-0x0000000000400000-0x000000000044D000-memory.dmp	upx
behavioral2/memory/2716-193-0x0000000000400000-0x000000000044D000-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_abf0ec93f206d7b215f7b3d6f68fe1f5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_abf0ec93f206d7b215f7b3d6f68fe1f5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_abf0ec93f206d7b215f7b3d6f68fe1f5.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2716 wrote to memory of 4540	2716	JaffaCakes118_abf0ec93f206d7b215f7b3d6f68fe1f5.exe	83
PID 2716 wrote to memory of 4540	2716	JaffaCakes118_abf0ec93f206d7b215f7b3d6f68fe1f5.exe	83
PID 2716 wrote to memory of 4540	2716	JaffaCakes118_abf0ec93f206d7b215f7b3d6f68fe1f5.exe	83
PID 2716 wrote to memory of 2708	2716	JaffaCakes118_abf0ec93f206d7b215f7b3d6f68fe1f5.exe	84
PID 2716 wrote to memory of 2708	2716	JaffaCakes118_abf0ec93f206d7b215f7b3d6f68fe1f5.exe	84
PID 2716 wrote to memory of 2708	2716	JaffaCakes118_abf0ec93f206d7b215f7b3d6f68fe1f5.exe	84

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_abf0ec93f206d7b215f7b3d6f68fe1f5.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_abf0ec93f206d7b215f7b3d6f68fe1f5.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2716
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_abf0ec93f206d7b215f7b3d6f68fe1f5.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_abf0ec93f206d7b215f7b3d6f68fe1f5.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4540
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_abf0ec93f206d7b215f7b3d6f68fe1f5.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_abf0ec93f206d7b215f7b3d6f68fe1f5.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2708

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\4C7A.B20

Filesize
1KB

MD5
c3cd20e9c4e27291f71efc819cb3011f

SHA1
934ac68b3a3f0e44b5be75dad75c9909e86e9846

SHA256
26aafb2b1e1a3f668e98bb3624e0f89fac1f471200f71b11fa5b5c9fc0b43064

SHA512
99f30e30538d7d52026381df5958c7c1f759656a98e1bad5b369b4ab6448e4e77be69b1ad8209f369ede8eb177d5ec5fe9e52a1f184712e19f8b81d93df5d08c

Download Submit
C:\Users\Admin\AppData\Roaming\4C7A.B20

Filesize
600B

MD5
7fd4ff29cad5768f39dcd8c7b3b7907a

SHA1
63ae64f8bbd5cf63759c282f7705e8b5000c1cf5

SHA256
7b3086ff06e82a82c92139dc2f3ca56f6006fff50eab329a1fad9153a30d4990

SHA512
279c4ff2c88fec6adda552cb04131ea51ac7149a317b54456d8c1ca625e58e85b49b04b5722a8d024df33b97affef17d0dd0e42e215f291bc5571579f6c9c1e1

Download Submit
C:\Users\Admin\AppData\Roaming\4C7A.B20

Filesize
996B

MD5
9edef6b0d0402c50411e235282a9974d

SHA1
35507d5000d2185b563e9fce1649e4490c911be8

SHA256
6963bb2e65ca8cea3d8bf1d3b37f9264c35becf53959e005ed0d89115b0db179

SHA512
04328cb76fcd51cdeae27e156a3f986872fa7053bdc1c428ac8fece521a31d90b8e6fd830b190bc2c6ecdda06aee9df873f715ba5b8ce2a5512496087d35a7c1

Download Submit
memory/2708-79-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2708-80-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2708-82-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2716-2-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2716-1-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2716-14-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2716-193-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/4540-12-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/4540-13-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download

Analysis

Sharing