cycbot | ca64ef74f5424656bc57a9131651785a69001634d0af0b1280c9101be48fcae5

General

Target

cd1f60e33e97cfd8666442bbb73d61d6_JaffaCakes118.exe
Size

184KB
MD5

cd1f60e33e97cfd8666442bbb73d61d6
SHA1

ef28dc487c4664fd5cc71bbbba2bd2d2af3ec991
SHA256

ca64ef74f5424656bc57a9131651785a69001634d0af0b1280c9101be48fcae5
SHA512

74ee00cf1026061c9bd9d1e8f6c21f6ceb626a80efcb73773b004376a8ffa3571e3dbed77c6af2f430ff8ffbcf084438a2cdabb4fd1465d8ac3fca0dcd38cc66
SSDEEP

3072:ZCo+5CqpKED6/yn+fz4d1urm7t0Mzkwt5ySg3hnPUJMEFwsrwQ3nqIKqKzEc2XP:Za3pX/+fzYEr2t3zkwtgJxIz9r3nqIKh

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/2360-10-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral1/memory/2360-9-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral1/memory/2568-15-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral1/memory/2360-16-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral1/memory/2568-79-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral1/memory/1696-83-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral1/memory/2568-198-0x0000000000400000-0x000000000048E000-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\\dwm.exe"	cd1f60e33e97cfd8666442bbb73d61d6_JaffaCakes118.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/2568-2-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/2360-10-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/2360-9-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/2568-15-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/2360-16-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/2568-79-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/1696-81-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/1696-83-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/2568-198-0x0000000000400000-0x000000000048E000-memory.dmp	upx

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	cd1f60e33e97cfd8666442bbb73d61d6_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2568 wrote to memory of 2360	2568	cd1f60e33e97cfd8666442bbb73d61d6_JaffaCakes118.exe	30
PID 2568 wrote to memory of 2360	2568	cd1f60e33e97cfd8666442bbb73d61d6_JaffaCakes118.exe	30
PID 2568 wrote to memory of 2360	2568	cd1f60e33e97cfd8666442bbb73d61d6_JaffaCakes118.exe	30
PID 2568 wrote to memory of 2360	2568	cd1f60e33e97cfd8666442bbb73d61d6_JaffaCakes118.exe	30
PID 2568 wrote to memory of 1696	2568	cd1f60e33e97cfd8666442bbb73d61d6_JaffaCakes118.exe	33
PID 2568 wrote to memory of 1696	2568	cd1f60e33e97cfd8666442bbb73d61d6_JaffaCakes118.exe	33
PID 2568 wrote to memory of 1696	2568	cd1f60e33e97cfd8666442bbb73d61d6_JaffaCakes118.exe	33
PID 2568 wrote to memory of 1696	2568	cd1f60e33e97cfd8666442bbb73d61d6_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\cd1f60e33e97cfd8666442bbb73d61d6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cd1f60e33e97cfd8666442bbb73d61d6_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2568
- C:\Users\Admin\AppData\Local\Temp\cd1f60e33e97cfd8666442bbb73d61d6_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\cd1f60e33e97cfd8666442bbb73d61d6_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  PID:2360
- C:\Users\Admin\AppData\Local\Temp\cd1f60e33e97cfd8666442bbb73d61d6_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\cd1f60e33e97cfd8666442bbb73d61d6_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  PID:1696

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

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Downloads

C:\Users\Admin\AppData\Roaming\7317.FE7

Filesize
1KB

MD5
58eaa2b1e0c503c835794371e2d58d73

SHA1
3957cc6f10ccd2ede8743ffe1aefa3f2b19a0f64

SHA256
355206843dd8adc3df04544102fd7526b92f81e64cb4c695ed1d633b33d5fc58

SHA512
df3595aedbfd619a649b3b3b221237b5dca171726b395a25d4d4ea8342c4511ff575958adb9856a021fe52081b3b77a4f2813092817e61de8e0c4323b9b23804

Download Submit
C:\Users\Admin\AppData\Roaming\7317.FE7

Filesize
600B

MD5
ceeddbf628aade0f81926ac08164d471

SHA1
bf06907d9b1aee6fffee4848297a41de3f4514c6

SHA256
105a67a2ab5bae7dd86b9a533fbde6a004b0df9b1d3b5dfeb5d602c2948067c2

SHA512
2319bf8366397d3c1cacb420ea4eb8a857c36d1d987feb72a51d98ea1b14eaa51ea438f9d9f87cd33ba834aa78ff9423cce3e796b14b8ea22f69565a47951387

Download Submit
C:\Users\Admin\AppData\Roaming\7317.FE7

Filesize
996B

MD5
2e8e1be1ade811e7eea6ea9448e306c1

SHA1
79803f1d2004cb22ebe412999a7b97130c20711c

SHA256
4383cc422e48b90f793514891224aa7bb390c0fc1bba83f0a7523af7de565355

SHA512
599f234a32f81b25bf1126f9a1277c9813148abf52d4e23b757ad451e56de6d522f63f049615bbc48d9d6b9f1c22cf66bb2002904522fdd58482b0762bf76936

Download Submit
memory/1696-81-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/1696-83-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2360-16-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2360-9-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2360-10-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2568-15-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2568-79-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2568-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2568-2-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2568-198-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads