cycbot | cf2a018b28e148f703aeea439b89949c306aee48bea0550231cc66944b3276e3

General

Target

JaffaCakes118_24c25faa25ec5afb5fe0ffcce92185cd.exe
Size

169KB
MD5

24c25faa25ec5afb5fe0ffcce92185cd
SHA1

767c2a7c7cd8e05cad1d105610b4d061f71f4ba8
SHA256

cf2a018b28e148f703aeea439b89949c306aee48bea0550231cc66944b3276e3
SHA512

e3f6a7d9300d3b1eca355b49926a05b758ef5f4311ca34e5ac592cc46e7ca408089fe9cb2763b0fc697593fd15cc17d164dd737ca487048866d7ae6700d7335f
SSDEEP

3072:KOjNRQG/P1ZjMlRvujPBsSSFY6WGGlXEmGlU7gtP17g3faOkStkf:KOjNRV/UlRvujPBwFY6WGuEmGMgnUfaz

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 6 IoCs

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

resource	yara_rule
behavioral1/memory/356-6-0x0000000000400000-0x000000000043E000-memory.dmp	family_cycbot
behavioral1/memory/1712-13-0x0000000000400000-0x000000000043E000-memory.dmp	family_cycbot
behavioral1/memory/1928-76-0x0000000000400000-0x000000000043E000-memory.dmp	family_cycbot
behavioral1/memory/1712-77-0x0000000000400000-0x000000000043E000-memory.dmp	family_cycbot
behavioral1/memory/1712-160-0x0000000000400000-0x000000000043E000-memory.dmp	family_cycbot
behavioral1/memory/1712-197-0x0000000000400000-0x000000000043E000-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_24c25faa25ec5afb5fe0ffcce92185cd.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1712-2-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/356-5-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/356-6-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/1712-13-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/1928-76-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/1712-77-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/1712-160-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/1712-197-0x0000000000400000-0x000000000043E000-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_24c25faa25ec5afb5fe0ffcce92185cd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_24c25faa25ec5afb5fe0ffcce92185cd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_24c25faa25ec5afb5fe0ffcce92185cd.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1712 wrote to memory of 356	1712	JaffaCakes118_24c25faa25ec5afb5fe0ffcce92185cd.exe	30
PID 1712 wrote to memory of 356	1712	JaffaCakes118_24c25faa25ec5afb5fe0ffcce92185cd.exe	30
PID 1712 wrote to memory of 356	1712	JaffaCakes118_24c25faa25ec5afb5fe0ffcce92185cd.exe	30
PID 1712 wrote to memory of 356	1712	JaffaCakes118_24c25faa25ec5afb5fe0ffcce92185cd.exe	30
PID 1712 wrote to memory of 1928	1712	JaffaCakes118_24c25faa25ec5afb5fe0ffcce92185cd.exe	33
PID 1712 wrote to memory of 1928	1712	JaffaCakes118_24c25faa25ec5afb5fe0ffcce92185cd.exe	33
PID 1712 wrote to memory of 1928	1712	JaffaCakes118_24c25faa25ec5afb5fe0ffcce92185cd.exe	33
PID 1712 wrote to memory of 1928	1712	JaffaCakes118_24c25faa25ec5afb5fe0ffcce92185cd.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_24c25faa25ec5afb5fe0ffcce92185cd.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_24c25faa25ec5afb5fe0ffcce92185cd.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1712
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_24c25faa25ec5afb5fe0ffcce92185cd.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_24c25faa25ec5afb5fe0ffcce92185cd.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:356
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_24c25faa25ec5afb5fe0ffcce92185cd.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_24c25faa25ec5afb5fe0ffcce92185cd.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1928

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\7C58.951

Filesize
1KB

MD5
60194ef2da2b901918029b13ceeb40c8

SHA1
372631e47b253da60a794eb62185d4a43e4f0416

SHA256
84d1d33f9aee8d1217874cfbc280b53ab0cebbf7683c769b85d5ed6c68bb70a9

SHA512
2562a85b1d61fcb26283577860adaff1e297ff84624d884f52f688972f24d9df98ace8d5824f49ed7b4ae905cccbd7a149f03c41e9bc6644d9a2c6d0115bb1e5

Download Submit
C:\Users\Admin\AppData\Roaming\7C58.951

Filesize
600B

MD5
5dc67cb062a9fe2d7a4066c1954f18dd

SHA1
d80ec1f65ee3565329eaa2d5a4e95c74155c5e59

SHA256
1a48c9f09f2f4a4ec63d0f40ed966258a673ae88053c4a1d9849345c590a2a0d

SHA512
08e57897b0af2a4930a41d1d7235156f7c62bea6d07d80599ea902be1c3ada3bfbfb4d28669f9d23e34eaa16d42212fd1735e2d3db416185ac85ff60d76d2c90

Download Submit
C:\Users\Admin\AppData\Roaming\7C58.951

Filesize
996B

MD5
af60622e422fc01d39515b09166dd841

SHA1
b0d84801b3e70d59cfcc8fad0dd96bcdce3cbab7

SHA256
9981e5c45e829194798e28c7dbcfbf57101be7d507017909eca867222052722e

SHA512
7a6395e6ca50c5562c7419ee944f49a08e306bd883509da9b0e4565dc3119e967e6f8a11151ce4073d1e460a6bdac8a96fb7f042a98d43a57b8d275a49fe8e73

Download Submit
memory/356-5-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/356-6-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1712-1-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1712-2-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1712-13-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1712-77-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1712-160-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1712-197-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1928-76-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads