cycbot | 3a12049b5d15e912e420c9543fc0a376f75a7e425acefc9c2adfa129f119ff77

General

Target

JaffaCakes118_64fbca0499344379db2e554eb5142053.exe
Size

175KB
MD5

64fbca0499344379db2e554eb5142053
SHA1

e2cea775ace9da78646cb34ac07d113affc26b65
SHA256

3a12049b5d15e912e420c9543fc0a376f75a7e425acefc9c2adfa129f119ff77
SHA512

c3656df010b4f823155fa0ec61a3c4a6b70c4295f3f29002fa31ef50c57a7954f29ed5ead0a1bc5c99a0e7528c83312289331460061dd735ac09c071ba1090e2
SSDEEP

3072:IijUgC4ajr0X7bh+k+Hc+2WHF+dWokMKWtnnLjXXX2G3eRk6OMW5JdIRNYHuSF:0glajr0ZT+HcIHF+oodBLXXrikzgRSOS

Score

10^/10

cycbot backdoor discovery persistence rat spyware stealer upx

Malware Config

Signatures

Cycbot
Cycbot is a backdoor and trojan written in C++..
backdoor rat cycbot
Cycbot family
cycbot

Detects Cycbot payload 7 IoCs

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

resource	yara_rule
behavioral1/memory/2172-15-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/2172-14-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/3060-16-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/3060-17-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral1/memory/1056-127-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/3060-128-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/3060-294-0x0000000000400000-0x0000000000491000-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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\ED009\\733A5.exe"	JaffaCakes118_64fbca0499344379db2e554eb5142053.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3060-2-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2172-15-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2172-14-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/3060-16-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/3060-17-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/1056-127-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/1056-126-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/3060-128-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/3060-294-0x0000000000400000-0x0000000000491000-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	JaffaCakes118_64fbca0499344379db2e554eb5142053.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_64fbca0499344379db2e554eb5142053.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_64fbca0499344379db2e554eb5142053.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 2172	3060	JaffaCakes118_64fbca0499344379db2e554eb5142053.exe	31
PID 3060 wrote to memory of 2172	3060	JaffaCakes118_64fbca0499344379db2e554eb5142053.exe	31
PID 3060 wrote to memory of 2172	3060	JaffaCakes118_64fbca0499344379db2e554eb5142053.exe	31
PID 3060 wrote to memory of 2172	3060	JaffaCakes118_64fbca0499344379db2e554eb5142053.exe	31
PID 3060 wrote to memory of 1056	3060	JaffaCakes118_64fbca0499344379db2e554eb5142053.exe	33
PID 3060 wrote to memory of 1056	3060	JaffaCakes118_64fbca0499344379db2e554eb5142053.exe	33
PID 3060 wrote to memory of 1056	3060	JaffaCakes118_64fbca0499344379db2e554eb5142053.exe	33
PID 3060 wrote to memory of 1056	3060	JaffaCakes118_64fbca0499344379db2e554eb5142053.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_64fbca0499344379db2e554eb5142053.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_64fbca0499344379db2e554eb5142053.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3060
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_64fbca0499344379db2e554eb5142053.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_64fbca0499344379db2e554eb5142053.exe startC:\Program Files (x86)\LP\A50E\533.exe%C:\Program Files (x86)\LP\A50E
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2172
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_64fbca0499344379db2e554eb5142053.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_64fbca0499344379db2e554eb5142053.exe startC:\Program Files (x86)\09C37\lvvm.exe%C:\Program Files (x86)\09C37
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1056

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

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\ED009\9C37.D00

Filesize
996B

MD5
46a8e52bcec39c42bf9cfa32f68c05bc

SHA1
b99e391c13e866673b9d550acc2d7cd93a748224

SHA256
d1f9f01b3e348b1c31491fd900de3305bb23ae3316a993198a9fca86e79e41d8

SHA512
ebfe78864160604f247336b5d2db95d130086dc8f4d92f4f2aebec5ce234b66860d44cafb752de0a826fb672c4815e99284b3b863aa4606ba822ad5032a1578e

Download Submit
C:\Users\Admin\AppData\Roaming\ED009\9C37.D00

Filesize
600B

MD5
a0a96f31ddb757e50c3aca1ef96b45d2

SHA1
13d6d562b22a99dfc7bef4051c8242c304390670

SHA256
faad111e8d1102ed84524a70cba0dff1867ea3b682bc323fd360f9395ae6442f

SHA512
5be5cd5de60d4ba8a0fcf8fc44afb125e64d913fa619906026ca9187ea3d9e4245366b990d750faef5baa8ec2042c1c460f56c42f61dea4c80b5e5c809b626d1

Download Submit
C:\Users\Admin\AppData\Roaming\ED009\9C37.D00

Filesize
1KB

MD5
04c8d2cddb10d1f30554aceef5e392cf

SHA1
acf78f20ad59f05fb7f6a1b56fe097391b64a6a1

SHA256
1d38e26c9e75056fd10249a98fb9a467d8071bce15f925428920e5fa4fe70581

SHA512
4c7014650fd127ee88bfdbf513f7b3e06f70fa8b1ac22d3b751c1c5b003b724cf8795efb55fe8aaad18e1ff42feefb0614d15edfaeba0379dc04f5e490c6587a

Download Submit
memory/1056-126-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/1056-127-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2172-15-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2172-14-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2172-12-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3060-17-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/3060-16-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3060-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/3060-128-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3060-2-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3060-294-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads