cycbot | 6e445946a7c007df4ca43d3a06b030a4ca0087b1c7fe58dc3ba4788c36542e02

General

Target

JaffaCakes118_67586c09ab6e5c7f83119ba6ace7682b.exe
Size

172KB
MD5

67586c09ab6e5c7f83119ba6ace7682b
SHA1

0f87f9b6fb52dad6a4abaa5ce512901b82f36bef
SHA256

6e445946a7c007df4ca43d3a06b030a4ca0087b1c7fe58dc3ba4788c36542e02
SHA512

58abbe71146eec681092d8f2c3ec015e3f5b3f7791effceefd6b254a22c471eff9d6ef0fcf9126730b609e38e036d679e1c424de7c9934bbe0b432e15af109d5
SSDEEP

3072:Gc0lKMkRoOsxvEbZa7vCEz8ukZ9qVRl2dcYxd+R5LHjoJa9vnWvco:X0AB7uqEguRVXAhxd+R5bV9vWvP

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/2404-5-0x0000000000400000-0x0000000000441000-memory.dmp	family_cycbot
behavioral1/memory/2120-12-0x0000000000400000-0x0000000000441000-memory.dmp	family_cycbot
behavioral1/memory/2160-74-0x0000000000400000-0x0000000000441000-memory.dmp	family_cycbot
behavioral1/memory/2120-75-0x0000000000400000-0x0000000000441000-memory.dmp	family_cycbot
behavioral1/memory/2120-168-0x0000000000400000-0x0000000000441000-memory.dmp	family_cycbot
behavioral1/memory/2120-207-0x0000000000400000-0x0000000000441000-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_67586c09ab6e5c7f83119ba6ace7682b.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2120-2-0x0000000000400000-0x0000000000441000-memory.dmp	upx
behavioral1/memory/2404-5-0x0000000000400000-0x0000000000441000-memory.dmp	upx
behavioral1/memory/2120-12-0x0000000000400000-0x0000000000441000-memory.dmp	upx
behavioral1/memory/2160-72-0x0000000000400000-0x0000000000441000-memory.dmp	upx
behavioral1/memory/2160-74-0x0000000000400000-0x0000000000441000-memory.dmp	upx
behavioral1/memory/2120-75-0x0000000000400000-0x0000000000441000-memory.dmp	upx
behavioral1/memory/2120-168-0x0000000000400000-0x0000000000441000-memory.dmp	upx
behavioral1/memory/2120-207-0x0000000000400000-0x0000000000441000-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_67586c09ab6e5c7f83119ba6ace7682b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_67586c09ab6e5c7f83119ba6ace7682b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_67586c09ab6e5c7f83119ba6ace7682b.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2120 wrote to memory of 2404	2120	JaffaCakes118_67586c09ab6e5c7f83119ba6ace7682b.exe	30
PID 2120 wrote to memory of 2404	2120	JaffaCakes118_67586c09ab6e5c7f83119ba6ace7682b.exe	30
PID 2120 wrote to memory of 2404	2120	JaffaCakes118_67586c09ab6e5c7f83119ba6ace7682b.exe	30
PID 2120 wrote to memory of 2404	2120	JaffaCakes118_67586c09ab6e5c7f83119ba6ace7682b.exe	30
PID 2120 wrote to memory of 2160	2120	JaffaCakes118_67586c09ab6e5c7f83119ba6ace7682b.exe	33
PID 2120 wrote to memory of 2160	2120	JaffaCakes118_67586c09ab6e5c7f83119ba6ace7682b.exe	33
PID 2120 wrote to memory of 2160	2120	JaffaCakes118_67586c09ab6e5c7f83119ba6ace7682b.exe	33
PID 2120 wrote to memory of 2160	2120	JaffaCakes118_67586c09ab6e5c7f83119ba6ace7682b.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_67586c09ab6e5c7f83119ba6ace7682b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_67586c09ab6e5c7f83119ba6ace7682b.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2120
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_67586c09ab6e5c7f83119ba6ace7682b.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_67586c09ab6e5c7f83119ba6ace7682b.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2404
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_67586c09ab6e5c7f83119ba6ace7682b.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_67586c09ab6e5c7f83119ba6ace7682b.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2160

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\9587.805

Filesize
1KB

MD5
1e9126bd6660e69c1db900ff30175971

SHA1
b043cc7e64a5ab5b66126107e05ed350129b7fd5

SHA256
2a87a47963dbcab442cb8c5c3a0615cc45d9534ecd334666ec352f4632d955c6

SHA512
5bc61b6bf79d1e8b188938725363b9f93c7631fb319ad2476dce6fd78219c2554b71fe73781436b2aec59d4cca2df5bd1684acabcaa2f0fdc6713de15336eb3f

Download Submit
C:\Users\Admin\AppData\Roaming\9587.805

Filesize
600B

MD5
4a25d7e40cbe02726da642297a8cfc4f

SHA1
c4e3f332604f32910244d9fb1abcc2541d6532e9

SHA256
08cc3ecc66b03b3ec663e79b36ae28127eb2b10a287d3630bc16d40719e926bd

SHA512
8eb0a3bf0f0c2e9a5a5ee57679317fdb864bf1236d86f73999b3d131a03527d71c75d7a8f4abb0014bae499c88c86d27efce1ba64f52e693969343f833731a55

Download Submit
C:\Users\Admin\AppData\Roaming\9587.805

Filesize
996B

MD5
257f051bd478da891dc564db4f1f0430

SHA1
334538badb81d51126d978882bb7e8eae1f148b7

SHA256
c1cd2ef91224ab8ccf2b253fb8c4d1821f6d600ce50f26018dc277efcce2a182

SHA512
20da866af983514791c41100b6412418992f9036f1217aab35c610684f824da9b18a9d61daa4ddf75e954fa7389bd476d8715293646d311a1321bd3eed6bfda5

Download Submit
memory/2120-1-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2120-2-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2120-12-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2120-75-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2120-168-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2120-207-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2160-72-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2160-74-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2404-5-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads