cycbot | 74eea929eddb500065246acf0287f270e6ec5da96605d5c20b063cf0ba1201e8

General

Target

JaffaCakes118_a42c18ffb0c8498155c2aadcb072c39c.exe
Size

169KB
MD5

a42c18ffb0c8498155c2aadcb072c39c
SHA1

3f35fbca35ee2b94e16b36e27b2aec4f668ab78c
SHA256

74eea929eddb500065246acf0287f270e6ec5da96605d5c20b063cf0ba1201e8
SHA512

97a98c02cd596779bce03921887e043ce6206cbce155f932bb9c99b387398a9c21f0f57836b0e4a7a4c501fd64432e220aca02ce927bd26d269aba9916911a8b
SSDEEP

3072:vASaBv/HCthEWNcBMBCRGT+oN5+eyuHZljVDIZJgqAmsoKrrkJ+jG73:vANN/sEWKCQMTGeRjZQJgLmoPkc2

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
behavioral1/memory/4480-38-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral1/memory/4480-39-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/4480-104-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/1416-108-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/4480-190-0x0000000000400000-0x0000000000490000-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-1-5-21-1279544337-3716153908-718418795-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\D4128\\90DBA.exe"	JaffaCakes118_a42c18ffb0c8498155c2aadcb072c39c.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/4480-2-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/4480-38-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral1/memory/4480-39-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/4480-104-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/1416-106-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/1416-108-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/4480-190-0x0000000000400000-0x0000000000490000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1004	3016	WerFault.exe	86

System Location Discovery: System Language Discovery 1 TTPs 1 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_a42c18ffb0c8498155c2aadcb072c39c.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4480 wrote to memory of 3016	4480	JaffaCakes118_a42c18ffb0c8498155c2aadcb072c39c.exe	86
PID 4480 wrote to memory of 3016	4480	JaffaCakes118_a42c18ffb0c8498155c2aadcb072c39c.exe	86
PID 4480 wrote to memory of 3016	4480	JaffaCakes118_a42c18ffb0c8498155c2aadcb072c39c.exe	86
PID 4480 wrote to memory of 1416	4480	JaffaCakes118_a42c18ffb0c8498155c2aadcb072c39c.exe	101
PID 4480 wrote to memory of 1416	4480	JaffaCakes118_a42c18ffb0c8498155c2aadcb072c39c.exe	101
PID 4480 wrote to memory of 1416	4480	JaffaCakes118_a42c18ffb0c8498155c2aadcb072c39c.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a42c18ffb0c8498155c2aadcb072c39c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a42c18ffb0c8498155c2aadcb072c39c.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4480
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a42c18ffb0c8498155c2aadcb072c39c.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a42c18ffb0c8498155c2aadcb072c39c.exe startC:\Program Files (x86)\LP\BADD\D9B.exe%C:\Program Files (x86)\LP\BADD
  2⤵
  PID:3016
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3016 -s 496
    3⤵
    - Program crash
    PID:1004
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a42c18ffb0c8498155c2aadcb072c39c.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a42c18ffb0c8498155c2aadcb072c39c.exe startC:\Program Files (x86)\28AB2\lvvm.exe%C:\Program Files (x86)\28AB2
  2⤵
  PID:1416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3016 -ip 3016
1⤵
PID:4152

Network

MITRE ATT&CK Enterprise v16

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\D4128\8AB2.412

Filesize
996B

MD5
b443232e4981fea1d27f09f8cac40bfc

SHA1
e3d8a2025b64e58d58ba116e2685ee064b65c88e

SHA256
fc7d6891f81971d89234db316bd49ab86af3f0e3322c1299ed8d168cec341655

SHA512
4c17762577e5b8eac22cf80c23a93fe8b54210e937cebb8f4792aa71138dfb6bbd407c8fe1df08b6e1ed7c0a5f082432e8fbabadf06e6cc2db1d89a747d15c3d

Download Submit
C:\Users\Admin\AppData\Roaming\D4128\8AB2.412

Filesize
600B

MD5
0c5ae846a8a07c169ed16c54f1a0d6f6

SHA1
23fdf35b421ec14f96b8dc4ae26d0a033107bd5b

SHA256
afd7e8b0837cf16c704d60cc388cdc41859cc8713dd5b770a77d8b70ddb48ccf

SHA512
90ed11dc820de5f55d1390b5682884ee7da0512afd5bcedcd704f9743e629c71f2b77573b02b074dd336e12633189d97d0c7db138dc1f2f7d0799935e8635209

Download Submit
memory/1416-106-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1416-108-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3016-12-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4480-1-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/4480-2-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4480-38-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/4480-39-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4480-104-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4480-190-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads