cycbot | b5778f8e8fcc1d06f0a684a383883f83ced63f980573463eba2381c09bf1e19d

General

Target

e85fa12ac36d0bb243227325072eee77_JaffaCakes118.exe
Size

165KB
MD5

e85fa12ac36d0bb243227325072eee77
SHA1

d12d5f59c3bbb4f779e90b2cb6fbd1ce710bf795
SHA256

b5778f8e8fcc1d06f0a684a383883f83ced63f980573463eba2381c09bf1e19d
SHA512

a8cf247c95af609557041cc88c3cb1e3cd34bbeb4b85422c5615d9476b8fd06d056b4e379136f14bf250dd166975ea3f9accaa0f9ed912b62436dc1be62bfbf0
SSDEEP

3072:XBOz/2NsqcjZ/A8JCFtPdIkR6ZgLDPVT7m4nPfkQZO:RaGcjegCjPdd6yF7m4PfB

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/4520-8-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/4520-9-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/1676-15-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/2940-82-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/1676-83-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/1676-187-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\conhost = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\conhost.exe"	e85fa12ac36d0bb243227325072eee77_JaffaCakes118.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1676-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4520-8-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4520-9-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/1676-15-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/2940-81-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/2940-82-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/1676-83-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/1676-187-0x0000000000400000-0x0000000000445000-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	e85fa12ac36d0bb243227325072eee77_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e85fa12ac36d0bb243227325072eee77_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e85fa12ac36d0bb243227325072eee77_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1676 wrote to memory of 4520	1676	e85fa12ac36d0bb243227325072eee77_JaffaCakes118.exe	83
PID 1676 wrote to memory of 4520	1676	e85fa12ac36d0bb243227325072eee77_JaffaCakes118.exe	83
PID 1676 wrote to memory of 4520	1676	e85fa12ac36d0bb243227325072eee77_JaffaCakes118.exe	83
PID 1676 wrote to memory of 2940	1676	e85fa12ac36d0bb243227325072eee77_JaffaCakes118.exe	85
PID 1676 wrote to memory of 2940	1676	e85fa12ac36d0bb243227325072eee77_JaffaCakes118.exe	85
PID 1676 wrote to memory of 2940	1676	e85fa12ac36d0bb243227325072eee77_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\e85fa12ac36d0bb243227325072eee77_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e85fa12ac36d0bb243227325072eee77_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1676
- C:\Users\Admin\AppData\Local\Temp\e85fa12ac36d0bb243227325072eee77_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e85fa12ac36d0bb243227325072eee77_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4520
- C:\Users\Admin\AppData\Local\Temp\e85fa12ac36d0bb243227325072eee77_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e85fa12ac36d0bb243227325072eee77_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2940

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

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\81A2.24D

Filesize
1KB

MD5
673095f82b09f51e31345642b7e98e93

SHA1
bc9712291535b42919e18949471b2297c5d1cedb

SHA256
a3059e5181dd22c0ceea18e0429676b4c4ca5402f581720256e9425b8acd1779

SHA512
6dca027b8d10b103b83cb7f7e41524b35432d22a7e5d12ab6e95f8b4b432150036a6be11db063390ee61d68c43a6915459b3a4054b00a92f1e700ae720c9fad8

Download Submit
C:\Users\Admin\AppData\Roaming\81A2.24D

Filesize
600B

MD5
ec08067da0ca4a5d045523441b032097

SHA1
0009fe8242b1e6f871896cd5674b2b58129f2a02

SHA256
d28113e0aedea92a4ffa6142c04c78fbc86838d86fb7b9801e46560245db1ac0

SHA512
537b92741ed491ec0010c0a6d3a44028f1a26ab3f2314c76b3b6f74ea87a47d6bb07aa17f6b1c51aa9137d455bafb90e3516d4021306aa3f3aca9684cfe15395

Download Submit
C:\Users\Admin\AppData\Roaming\81A2.24D

Filesize
996B

MD5
d61dea3c4b73c429b9bcfc3acaec340d

SHA1
c4a89521f70f1d83155810fb1dc0da48c9a4949d

SHA256
b784458ab33cdc2985447b38b72eb745b2dae25c739c6bc842441e1b226c91cb

SHA512
f9fb868c6e88731b18c60baf42ce8b19f52669ff516c008a4926600469af3502e5c16acb3866b2daf6739df184ecff568c67725b9ae3228ade6eb5dea18a0d5a

Download Submit
memory/1676-83-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1676-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1676-187-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1676-15-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1676-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2940-80-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2940-82-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2940-81-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4520-9-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4520-8-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads