cycbot | 4c8ae591040897908e21a857126d6a7f0854c1a911d9c3df8a4cce867823e0b4

General

Target

JaffaCakes118_8b1a87bb29a899a517111137b23e62cb.exe
Size

164KB
MD5

8b1a87bb29a899a517111137b23e62cb
SHA1

e7d186ab00409c0e1a3f6457f1667e0b729fd47f
SHA256

4c8ae591040897908e21a857126d6a7f0854c1a911d9c3df8a4cce867823e0b4
SHA512

5d4e85e9cdd200e8d2a0686dad4ffe585aa68c70100402b076f1335209272582432a1be29ac1c4769ff68da965ccd6bb070870206d0c3f9a72fe5e95bfc08cfe
SSDEEP

3072:WaCFJSCDpb6xi2lQB32wR9wxMfBjXFJFMjnagBDBKuYjeHdI/fAUJzrGByfjcbLt:wFdDkxA8aX27ZDEuiQwfYLt

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 5 IoCs

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

resource	yara_rule
behavioral1/memory/1264-12-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral1/memory/2072-13-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral1/memory/2648-76-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral1/memory/2072-139-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral1/memory/2072-151-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot

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

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"	JaffaCakes118_8b1a87bb29a899a517111137b23e62cb.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2072-2-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/1264-12-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2072-13-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2648-76-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2072-139-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2072-151-0x0000000000400000-0x0000000000444000-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_8b1a87bb29a899a517111137b23e62cb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_8b1a87bb29a899a517111137b23e62cb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_8b1a87bb29a899a517111137b23e62cb.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2072 wrote to memory of 1264	2072	JaffaCakes118_8b1a87bb29a899a517111137b23e62cb.exe	30
PID 2072 wrote to memory of 1264	2072	JaffaCakes118_8b1a87bb29a899a517111137b23e62cb.exe	30
PID 2072 wrote to memory of 1264	2072	JaffaCakes118_8b1a87bb29a899a517111137b23e62cb.exe	30
PID 2072 wrote to memory of 1264	2072	JaffaCakes118_8b1a87bb29a899a517111137b23e62cb.exe	30
PID 2072 wrote to memory of 2648	2072	JaffaCakes118_8b1a87bb29a899a517111137b23e62cb.exe	33
PID 2072 wrote to memory of 2648	2072	JaffaCakes118_8b1a87bb29a899a517111137b23e62cb.exe	33
PID 2072 wrote to memory of 2648	2072	JaffaCakes118_8b1a87bb29a899a517111137b23e62cb.exe	33
PID 2072 wrote to memory of 2648	2072	JaffaCakes118_8b1a87bb29a899a517111137b23e62cb.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8b1a87bb29a899a517111137b23e62cb.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8b1a87bb29a899a517111137b23e62cb.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2072
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8b1a87bb29a899a517111137b23e62cb.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8b1a87bb29a899a517111137b23e62cb.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1264
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8b1a87bb29a899a517111137b23e62cb.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8b1a87bb29a899a517111137b23e62cb.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2648

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

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

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Downloads

C:\Users\Admin\AppData\Roaming\629C.540

Filesize
600B

MD5
67a0b9acfa85f4c2a69986562721c4d3

SHA1
66147ff317a23dc6b781805e0ec420c194c0f624

SHA256
c262cb8bce4e4b163e4117d79d6d9ee98ea8cf9ff77a385151e5d8afd0c80296

SHA512
fec17364fa7190cfbc910f4e19ff48bb59786ef3a3eb1a40e8918fe3bfd420db63e3d207f6d37d3dde1e903a607bc594577fc3c96b5514d6a270fc2ee644706a

Download Submit
C:\Users\Admin\AppData\Roaming\629C.540

Filesize
1KB

MD5
329dd3a6ee9c33b9e2e04fe88aabf158

SHA1
09927a4183b6ef85d0fa67f1abfd8b31f8a8f379

SHA256
9de366dac3817fedfa41e0d9236d8ef4271865e849f715ea61618bac2ac7d9a9

SHA512
3b48250526251fe39a58affc3513d64acf371903c15a5c19a0577eb3a9b62098d3609c55df30c2bedb0bcec800f66ecdbe6b44b8771d22bd65c48aa272176105

Download Submit
C:\Users\Admin\AppData\Roaming\629C.540

Filesize
996B

MD5
fc9ce0cde6c16613c6afa893c1e2e66c

SHA1
737d0852be6cca2f482241c78359c7c9e440bb79

SHA256
4c22d4e4a156a7476bc55921bae958a669c3dedebf3549178cb6c14d4766f592

SHA512
842d1d43c342ec586172b1dd50954f0a6a9d9ebd5538a6cf3ee7e4182cab2415fa97a367ecfd843300bc01e1e56a53dbaee7052c192401d3305af324f56c3386

Download Submit
memory/1264-12-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2072-1-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2072-2-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2072-13-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2072-139-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2072-151-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2648-76-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads