cycbot | ce69fc82fe74b2e45813d029d908d8ec4d5a788df80c823abe40e11f0a08325b

General

Target

ce69fc82fe74b2e45813d029d908d8ec4d5a788df80c823abe40e11f0a08325bN.exe
Size

167KB
MD5

d1cf59b3e6d7bc3cdd521e7158e65d20
SHA1

baa2f928205102668cb27a8a4e3e6462850ae6d7
SHA256

ce69fc82fe74b2e45813d029d908d8ec4d5a788df80c823abe40e11f0a08325b
SHA512

d08501c0315956ff77dc084325550e198f845e64a32c69de63970ae87fc2740a0cfcfa9dd00ddf102fba8e2e3d60c4a146558662850880cb56d90ec444570f1d
SSDEEP

3072:1/JT+YPf75ysw4dB6eWth+WU8wTtNUFLwvPITiyTRbd0v0m:pJy+24dc7h+p8wwFZiSRbd6

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 4 IoCs

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

resource	yara_rule
behavioral2/memory/4056-13-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/4056-74-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/516-78-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/4056-195-0x0000000000400000-0x0000000000445000-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"	ce69fc82fe74b2e45813d029d908d8ec4d5a788df80c823abe40e11f0a08325bN.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4056-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4056-13-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4056-74-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/516-76-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/516-78-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4056-195-0x0000000000400000-0x0000000000445000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
944	1424	WerFault.exe	83

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	ce69fc82fe74b2e45813d029d908d8ec4d5a788df80c823abe40e11f0a08325bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ce69fc82fe74b2e45813d029d908d8ec4d5a788df80c823abe40e11f0a08325bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ce69fc82fe74b2e45813d029d908d8ec4d5a788df80c823abe40e11f0a08325bN.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4056 wrote to memory of 1424	4056	ce69fc82fe74b2e45813d029d908d8ec4d5a788df80c823abe40e11f0a08325bN.exe	83
PID 4056 wrote to memory of 1424	4056	ce69fc82fe74b2e45813d029d908d8ec4d5a788df80c823abe40e11f0a08325bN.exe	83
PID 4056 wrote to memory of 1424	4056	ce69fc82fe74b2e45813d029d908d8ec4d5a788df80c823abe40e11f0a08325bN.exe	83
PID 4056 wrote to memory of 516	4056	ce69fc82fe74b2e45813d029d908d8ec4d5a788df80c823abe40e11f0a08325bN.exe	95
PID 4056 wrote to memory of 516	4056	ce69fc82fe74b2e45813d029d908d8ec4d5a788df80c823abe40e11f0a08325bN.exe	95
PID 4056 wrote to memory of 516	4056	ce69fc82fe74b2e45813d029d908d8ec4d5a788df80c823abe40e11f0a08325bN.exe	95

C:\Users\Admin\AppData\Local\Temp\ce69fc82fe74b2e45813d029d908d8ec4d5a788df80c823abe40e11f0a08325bN.exe
"C:\Users\Admin\AppData\Local\Temp\ce69fc82fe74b2e45813d029d908d8ec4d5a788df80c823abe40e11f0a08325bN.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4056
- C:\Users\Admin\AppData\Local\Temp\ce69fc82fe74b2e45813d029d908d8ec4d5a788df80c823abe40e11f0a08325bN.exe
  C:\Users\Admin\AppData\Local\Temp\ce69fc82fe74b2e45813d029d908d8ec4d5a788df80c823abe40e11f0a08325bN.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1424
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1424 -s 400
    3⤵
    - Program crash
    PID:944
- C:\Users\Admin\AppData\Local\Temp\ce69fc82fe74b2e45813d029d908d8ec4d5a788df80c823abe40e11f0a08325bN.exe
  C:\Users\Admin\AppData\Local\Temp\ce69fc82fe74b2e45813d029d908d8ec4d5a788df80c823abe40e11f0a08325bN.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1424 -ip 1424
1⤵
PID:2116

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

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Downloads

C:\Users\Admin\AppData\Roaming\FBED.C05

Filesize
1KB

MD5
d0db5cd8aa1bb11196ec1d76e16f9054

SHA1
4cb75efffa03658bac1df79cd538615bd1e599ea

SHA256
962a9361d4bd4dbc9cbc6995d7902243dbc0409199d55cab6e8e864c4fd21232

SHA512
3f903d84542bee8155686ff30dc56dec900a7a0da4670a102856d9b8a5bef11f165f759bafb484e2b51a4d6b87b3d7a3553e90017da383673429e5cae4d02290

Download Submit
C:\Users\Admin\AppData\Roaming\FBED.C05

Filesize
600B

MD5
e045b55c747cacd5e4c621c5049d5274

SHA1
2a266b4ae0d24ba7fd6d2c77f3f2f5e6a4f6327d

SHA256
6ef3744bea2dc933c8b26f0add37e4ffc2262d81514ace26c72a5b519bd1226c

SHA512
df930a9869e9156f733fd150427a96c0f2474e32ab409a9d57f5115dad5bcc21c20595b65c8a9f01266461abb3319704d5f82dabe0fb418ebbcd4a083232fab7

Download Submit
C:\Users\Admin\AppData\Roaming\FBED.C05

Filesize
996B

MD5
1d5dc0cc1ddae293250686c0e279a391

SHA1
0cd09efb6f2cbc268ebccb33b7155894b5cb4d86

SHA256
922dc4dcc0547a86b50bdedf27c05d1a15cc5ec9ec87ce99d41bb6e98a452d0d

SHA512
32c16b67fab9c231debac3804a52e23e98f507b1aec21e3b607a025483f2394752eae1121253cca63cce21375752beb4508e591f87594fd305857e4f9d1a11d9

Download Submit
memory/516-76-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/516-78-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1424-12-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4056-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4056-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4056-13-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4056-74-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4056-195-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads