cycbot | 0b59dbe7144e51b638405e7fcd3215704c952431cd7ed7155d1db401604ee314

General

Target

cf86b664cbe440c27e969834c44df3ff_JaffaCakes118.exe
Size

182KB
MD5

cf86b664cbe440c27e969834c44df3ff
SHA1

b6e51df4c1aa38ae13ade247b3f160715b17af90
SHA256

0b59dbe7144e51b638405e7fcd3215704c952431cd7ed7155d1db401604ee314
SHA512

99e0cc3472e9d3748e4149816d281969f0502eb7bdbf3ebe57e4ecdcc12cb1e88893675dc75e8e225b5af70cb6e550b9c3f678aede3a1aabfd7b245ed47d2556
SSDEEP

3072:59GALJcnkJAYE6Ux2u9wa9qqDn6HxZYf587fSvTGU+ApvnDeumsU:59GALJcnFE/CD6HTWbZ+0jms

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/2968-14-0x0000000000400000-0x000000000046E000-memory.dmp	family_cycbot
behavioral2/memory/1208-15-0x0000000000400000-0x000000000046E000-memory.dmp	family_cycbot
behavioral2/memory/1208-78-0x0000000000400000-0x000000000046E000-memory.dmp	family_cycbot
behavioral2/memory/2892-82-0x0000000000400000-0x000000000046E000-memory.dmp	family_cycbot
behavioral2/memory/1208-184-0x0000000000400000-0x000000000046E000-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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\dwm.exe"	cf86b664cbe440c27e969834c44df3ff_JaffaCakes118.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1208-2-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/2968-12-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/2968-14-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/1208-15-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/1208-78-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/2892-80-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/2892-82-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/1208-184-0x0000000000400000-0x000000000046E000-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	cf86b664cbe440c27e969834c44df3ff_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cf86b664cbe440c27e969834c44df3ff_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cf86b664cbe440c27e969834c44df3ff_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1208 wrote to memory of 2968	1208	cf86b664cbe440c27e969834c44df3ff_JaffaCakes118.exe	83
PID 1208 wrote to memory of 2968	1208	cf86b664cbe440c27e969834c44df3ff_JaffaCakes118.exe	83
PID 1208 wrote to memory of 2968	1208	cf86b664cbe440c27e969834c44df3ff_JaffaCakes118.exe	83
PID 1208 wrote to memory of 2892	1208	cf86b664cbe440c27e969834c44df3ff_JaffaCakes118.exe	86
PID 1208 wrote to memory of 2892	1208	cf86b664cbe440c27e969834c44df3ff_JaffaCakes118.exe	86
PID 1208 wrote to memory of 2892	1208	cf86b664cbe440c27e969834c44df3ff_JaffaCakes118.exe	86

C:\Users\Admin\AppData\Local\Temp\cf86b664cbe440c27e969834c44df3ff_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cf86b664cbe440c27e969834c44df3ff_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1208
- C:\Users\Admin\AppData\Local\Temp\cf86b664cbe440c27e969834c44df3ff_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\cf86b664cbe440c27e969834c44df3ff_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2968
- C:\Users\Admin\AppData\Local\Temp\cf86b664cbe440c27e969834c44df3ff_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\cf86b664cbe440c27e969834c44df3ff_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2892

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\E19C.004

Filesize
1KB

MD5
919c15de81bd374585793680358bdd6f

SHA1
0977f6518015abce66b158e215faf140f50574fb

SHA256
3243dc559320f6e2b9554c7ba53cc5e67a2848667611994b231d6dc599ba52a0

SHA512
52a2e009b551b51008fcb4b7a641529e05599deec16cf33d0fb408b5ad9aebc7f17dfaed53a506fd816ce84fe0beb46ccf38ecebcbdafdcbec55eeed8ac41533

Download Submit
C:\Users\Admin\AppData\Roaming\E19C.004

Filesize
600B

MD5
de1eac9689dc3ffdfa508f7b9ef8d4ba

SHA1
c299f1ba052b950b364c6425958540677ec649af

SHA256
fa2ff9077d64700e2774ecf7c1605138146f749218e3dab2919cd6a993e1d1b3

SHA512
6c4bc21f359456dc4b425979c18cf48def4ad4b52114e97502ae5e521feb8f0626f8e7413adf7493d62af69c6c7fa180b92c29a9a970cb5df5b276c2904474ca

Download Submit
C:\Users\Admin\AppData\Roaming\E19C.004

Filesize
996B

MD5
282605febe20812837284443e4fd2f5c

SHA1
98f263d4ba8bb501a32790b03ac6de03e400255e

SHA256
d9e2432d484b50ce2b111661203b5607c9a078e76884b82f0c2ee0977cb10773

SHA512
f38cc764684b4e0035ac2c1b725fa07ceb26f2f0c4a3c54bda9a6ac27631a3d2d83b9e0fa6513cb0db769df5530467bef4df5eabb6f6ba65309989c9a8aa5126

Download Submit
memory/1208-1-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1208-2-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1208-15-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1208-78-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1208-184-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2892-80-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2892-82-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2968-12-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2968-14-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads