cycbot | bdc23ad2312132e189572557ee2777e78b539655a7f83afd73fe6a604dfac9aa

General

Target

JaffaCakes118_2720e3cc5e5d93ddfd12a8c1ea4ef535.exe
Size

182KB
MD5

2720e3cc5e5d93ddfd12a8c1ea4ef535
SHA1

2ac73cf6290412354ceda86e05a5c500e7bb33f0
SHA256

bdc23ad2312132e189572557ee2777e78b539655a7f83afd73fe6a604dfac9aa
SHA512

9d87c025064045fd00017fdd3c5b7298a7af8ba1e5e09e24b631905b6de612d48ebe84cabae1998bd3d84c37a8e1c1e555cc17cf686a56e4678566db375b8687
SSDEEP

3072:I0p0irQstIKCPyLnN8pVTezgIzfFe6Lp91uSmY8C0qoaIoJH/9BiupNH+JLFAFYh:5QsuKCPyDGpVTez7fFea+SmY8C0CIoJ/

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/2764-5-0x0000000000400000-0x0000000000443000-memory.dmp	family_cycbot
behavioral1/memory/2268-13-0x0000000000400000-0x0000000000443000-memory.dmp	family_cycbot
behavioral1/memory/2236-82-0x0000000000400000-0x0000000000443000-memory.dmp	family_cycbot
behavioral1/memory/2268-83-0x0000000000400000-0x0000000000443000-memory.dmp	family_cycbot
behavioral1/memory/2268-198-0x0000000000400000-0x0000000000443000-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_2720e3cc5e5d93ddfd12a8c1ea4ef535.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2268-2-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/2764-5-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/2268-13-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/2236-82-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/2268-83-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/2268-198-0x0000000000400000-0x0000000000443000-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_2720e3cc5e5d93ddfd12a8c1ea4ef535.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2720e3cc5e5d93ddfd12a8c1ea4ef535.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2720e3cc5e5d93ddfd12a8c1ea4ef535.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2268 wrote to memory of 2764	2268	JaffaCakes118_2720e3cc5e5d93ddfd12a8c1ea4ef535.exe	31
PID 2268 wrote to memory of 2764	2268	JaffaCakes118_2720e3cc5e5d93ddfd12a8c1ea4ef535.exe	31
PID 2268 wrote to memory of 2764	2268	JaffaCakes118_2720e3cc5e5d93ddfd12a8c1ea4ef535.exe	31
PID 2268 wrote to memory of 2764	2268	JaffaCakes118_2720e3cc5e5d93ddfd12a8c1ea4ef535.exe	31
PID 2268 wrote to memory of 2236	2268	JaffaCakes118_2720e3cc5e5d93ddfd12a8c1ea4ef535.exe	33
PID 2268 wrote to memory of 2236	2268	JaffaCakes118_2720e3cc5e5d93ddfd12a8c1ea4ef535.exe	33
PID 2268 wrote to memory of 2236	2268	JaffaCakes118_2720e3cc5e5d93ddfd12a8c1ea4ef535.exe	33
PID 2268 wrote to memory of 2236	2268	JaffaCakes118_2720e3cc5e5d93ddfd12a8c1ea4ef535.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2720e3cc5e5d93ddfd12a8c1ea4ef535.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2720e3cc5e5d93ddfd12a8c1ea4ef535.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2268
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2720e3cc5e5d93ddfd12a8c1ea4ef535.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2720e3cc5e5d93ddfd12a8c1ea4ef535.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2764
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2720e3cc5e5d93ddfd12a8c1ea4ef535.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2720e3cc5e5d93ddfd12a8c1ea4ef535.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2236

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\A373.8FD

Filesize
600B

MD5
089c839d5229dfb5f37811b11d66de8b

SHA1
77735755d3fcf0a2aec0cb613be872ec4920b5f2

SHA256
71a039078f1e4d8d7c07f85c1a548d7dcb5cf988bd75e55aa6824fb6f67d78ea

SHA512
a10668621072aeae8472e21831f73b3b8973a0cdfa1b000c69f7a2983c6162ca8990a1b653b0ad35b25a7dc21076696602459ccb0417fca2f81f04040f0a64b0

Download Submit
C:\Users\Admin\AppData\Roaming\A373.8FD

Filesize
1KB

MD5
b7f94a47fef047b6e1b29b8004c0ba9d

SHA1
9bdadd1d875d7c6483fe311baa23373011fc167c

SHA256
43ba917bca896cea1f1aff8b416ceb63006fef5d02a1b95c0d003affa781500c

SHA512
8725b625a47f9aa6807e2d94e449c29d91727cc8cd2c4dd1432a5ab9f5f0ce7210fdd828054bb24e307895c0d2584f6875ca16e3e0aed8ac38bb734aed4fed1a

Download Submit
C:\Users\Admin\AppData\Roaming\A373.8FD

Filesize
996B

MD5
95dc4b24e11d60b3d5fc7b7914fbebf0

SHA1
121adcef8054e300643392b481d31d63657296f1

SHA256
c41eff3f304440fa86401fdad285d968c4fb9657d01e276237c40f4aa311d7a8

SHA512
c375651d0803de56544101862d2f0ddcfa8e40fd55bb86f1efcf07cc9707e7a47af2a4f0871076a510d82ac7fce496c4ada181e3f6d05613554542706859a31f

Download Submit
memory/2236-82-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2268-1-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2268-2-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2268-13-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2268-83-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2268-198-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2764-5-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads