cycbot | 266cb4041236f6dd70a4709321690030ab63ff84aebe41ea8b4b6acd7503c18d

General

Target

f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe
Size

165KB
MD5

f85a69eb1e7069208389ab6da9c06865
SHA1

cbaa4a1d3cc96c034c42281bc671d90bf8533c41
SHA256

266cb4041236f6dd70a4709321690030ab63ff84aebe41ea8b4b6acd7503c18d
SHA512

1ca18d54de4cfce342eab678578de027ee5f8d0fb9a651f7ed777f8d3b9c54c21173b8bf5708ff76d65f2317062584ffb9d561c2d79aba6955a9da9ac783d318
SSDEEP

3072:L7veQjYvOs+/P0cdFVTWNdSdDcbu/Rr/pnAvWBb6Ud6:utvOd/PZVTWWdRjVAvWkUd

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 5 IoCs

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

resource	yara_rule
behavioral2/memory/1836-14-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/1276-15-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/1276-81-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/4392-83-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/1276-186-0x0000000000400000-0x0000000000445000-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"	f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1276-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/1836-8-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/1836-14-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/1276-15-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/1276-81-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4392-83-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/1276-186-0x0000000000400000-0x0000000000445000-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	f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1276 wrote to memory of 1836	1276	f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe	83
PID 1276 wrote to memory of 1836	1276	f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe	83
PID 1276 wrote to memory of 1836	1276	f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe	83
PID 1276 wrote to memory of 4392	1276	f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe	85
PID 1276 wrote to memory of 4392	1276	f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe	85
PID 1276 wrote to memory of 4392	1276	f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1276
- C:\Users\Admin\AppData\Local\Temp\f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1836
- C:\Users\Admin\AppData\Local\Temp\f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f85a69eb1e7069208389ab6da9c06865_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4392

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\BD98.C78

Filesize
1KB

MD5
7d9b5a862a4234557345920c846944fd

SHA1
77a200d625b6f0628e74dd602d082905206b6378

SHA256
e252ef3d11da4e6ab2356109db0090fe3a57ae93ce2a86d3839f8958877484c9

SHA512
4f62a61e1cf650bc940e88fb1f33e643fe4eccbb961ef5c2c314bb8c53a33447350ad864cb035bb2ac26bc00e6b31acdcdfd2f906714c61a72d191d892e6a1d8

Download Submit
C:\Users\Admin\AppData\Roaming\BD98.C78

Filesize
600B

MD5
7dea5f25ccbc7f1e819bf0554f07386e

SHA1
62bd44ae18d9fc9634d16099833c0fbe2813f1b2

SHA256
5ffb337c329c8cf527659278cfeedbe280df9697eb6b1c93abdbb8b911f51b88

SHA512
779426db84c420bc142c8d5c19219ac858c7f9925a75fe6cbb5db7c1014ac691830dd6f016560a729cf2b21d4ad6967907692351c18525b72906918cb12d3bfb

Download Submit
memory/1276-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1276-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1276-15-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1276-81-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1276-186-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1836-8-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1836-14-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4392-83-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads