cycbot | 1f82895292fd0f9becfb08bcf6ce3a09799a60d0a81f61160152d35798b2c2e7

General

Target

JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe
Size

181KB
MD5

96977cff64d6d4f4d9269f5d876ee8a1
SHA1

a3342d71ae672c2a6b0e89a5d1ee959a0499f9e1
SHA256

1f82895292fd0f9becfb08bcf6ce3a09799a60d0a81f61160152d35798b2c2e7
SHA512

69a9938e7a6fd83f2e842298f377af077a0f6274bc248c11f96509aabf47659296353156cd33e0cf03ad52377d928ace442f25a84e639e15addae9462c983ab7
SSDEEP

3072:8YZ1KP0tYNpCv5GUS1z/IZ6+rNALY3bflCtGcKg0I57Inpm92yL5CeO:ectYNpW5GxrIZ6xuj7u7IpByty

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/2756-15-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/2772-16-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/3012-86-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/2772-87-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/2772-183-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/2772-184-0x0000000000400000-0x000000000044B000-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_96977cff64d6d4f4d9269f5d876ee8a1.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2772-2-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2756-13-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2756-15-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2756-12-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2772-16-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/3012-86-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2772-87-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2772-183-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2772-184-0x0000000000400000-0x000000000044B000-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_96977cff64d6d4f4d9269f5d876ee8a1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2772 wrote to memory of 2756	2772	JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe	30
PID 2772 wrote to memory of 2756	2772	JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe	30
PID 2772 wrote to memory of 2756	2772	JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe	30
PID 2772 wrote to memory of 2756	2772	JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe	30
PID 2772 wrote to memory of 3012	2772	JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe	32
PID 2772 wrote to memory of 3012	2772	JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe	32
PID 2772 wrote to memory of 3012	2772	JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe	32
PID 2772 wrote to memory of 3012	2772	JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2772
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2756
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3012

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\0180.13A

Filesize
1KB

MD5
c4b76644f8ee71c19ef0ccfa89503ad6

SHA1
fe884a3adca1ad2a06b06f95514c828237f5066f

SHA256
cbf1acd2366979acc9f1bec97110a4c48d69aadb24b5af9e9eb68bee6af1b6bf

SHA512
ae679e15fb40f3bf48e32df0959bf5b9a7158dc30dca31c302c214e6838f6694371e92a7dd44fe0821e188749ce6321c898d27d0a097954512707d53f268ec7a

Download Submit
C:\Users\Admin\AppData\Roaming\0180.13A

Filesize
600B

MD5
95b0b911d18df6f164c7a0fd3870c68e

SHA1
e18b101eb704803a44cbc178284b798c56d4246e

SHA256
e48859316703dbbbfb32e3602a8d29f6d21132984b67f47f94c957f899d52fec

SHA512
cc3f27b3ecb31badb41acd17871363bf90cd34bbeaa0d0659563e42aebf0916e093bc32b51b2c3c1dab4d250c5632f26376b4dc22328cf89db775bb6816fc11e

Download Submit
C:\Users\Admin\AppData\Roaming\0180.13A

Filesize
996B

MD5
9c60b74aa5722f9dd889e112b789889c

SHA1
2eb5254a45a0a79ca247e7a88ca7eeb7e16ffbfc

SHA256
c581b0a3377b91a8c6898a285b11281196a429dc0ce059a7607db305a75330d3

SHA512
76d7c7d41ffc6ca477a652bf82f68935e759924b1aa63f7d0c12e919d4e6baa2437b03815db0cef0ba7f67e105e83fa5e20101027ca6be79df095f34dff2dda4

Download Submit
memory/2756-15-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2756-12-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2756-13-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2772-16-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2772-87-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2772-1-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2772-2-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2772-183-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2772-184-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3012-86-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads