cycbot | cf23ed684b64764c7d9ba42426915feb545784fad0c805c552da8b036c06a9c9

General

Target

JaffaCakes118_7461cb402511b83c66b8c729a6a1ba1d.exe
Size

175KB
MD5

7461cb402511b83c66b8c729a6a1ba1d
SHA1

a866cad40fff8d69b0e9a8695f2a3a2c67c36cbc
SHA256

cf23ed684b64764c7d9ba42426915feb545784fad0c805c552da8b036c06a9c9
SHA512

a40ca99fbd684125237b7a213bbe2fcfbd1f18639647b73ac9bb1481aa161e749c73783ca808ed1173d1f5eb56dc328b0e60f67ce8069b0e8c6775c7ec829063
SSDEEP

3072:bPT3AEuuvm+z8D1Hi1ok9Cm6AOBgILORZwVT5o1EZl70JV4m0/nV5:3Auvvz4Hi22ylBfK83fZl7Rt5

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/2544-7-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2236-14-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2852-72-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2236-73-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2236-168-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2236-207-0x0000000000400000-0x0000000000442000-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_7461cb402511b83c66b8c729a6a1ba1d.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2236-2-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2544-5-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2544-7-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2236-14-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2852-72-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2236-73-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2236-168-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2236-207-0x0000000000400000-0x0000000000442000-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_7461cb402511b83c66b8c729a6a1ba1d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7461cb402511b83c66b8c729a6a1ba1d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7461cb402511b83c66b8c729a6a1ba1d.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 2544	2236	JaffaCakes118_7461cb402511b83c66b8c729a6a1ba1d.exe	30
PID 2236 wrote to memory of 2544	2236	JaffaCakes118_7461cb402511b83c66b8c729a6a1ba1d.exe	30
PID 2236 wrote to memory of 2544	2236	JaffaCakes118_7461cb402511b83c66b8c729a6a1ba1d.exe	30
PID 2236 wrote to memory of 2544	2236	JaffaCakes118_7461cb402511b83c66b8c729a6a1ba1d.exe	30
PID 2236 wrote to memory of 2852	2236	JaffaCakes118_7461cb402511b83c66b8c729a6a1ba1d.exe	33
PID 2236 wrote to memory of 2852	2236	JaffaCakes118_7461cb402511b83c66b8c729a6a1ba1d.exe	33
PID 2236 wrote to memory of 2852	2236	JaffaCakes118_7461cb402511b83c66b8c729a6a1ba1d.exe	33
PID 2236 wrote to memory of 2852	2236	JaffaCakes118_7461cb402511b83c66b8c729a6a1ba1d.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7461cb402511b83c66b8c729a6a1ba1d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7461cb402511b83c66b8c729a6a1ba1d.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2236
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7461cb402511b83c66b8c729a6a1ba1d.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7461cb402511b83c66b8c729a6a1ba1d.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2544
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7461cb402511b83c66b8c729a6a1ba1d.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7461cb402511b83c66b8c729a6a1ba1d.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2852

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\9776.F82

Filesize
1KB

MD5
9e55143241d57ed301e790682b89a740

SHA1
45887fcc588d7d4baad65df4554fe2f5b0a99517

SHA256
73f40ae34014bb2157c3e30d5873a73495a28737f9286e1a15c82d417df7fb4e

SHA512
ace35dd07606d0892b85b7d4a59aa63429c00c2b81ecd39630c064784ed51e8399a85e1d75121f4a01959ba555f6a5179c08d445419ae5ecc8a7fce8e83eb4bf

Download Submit
C:\Users\Admin\AppData\Roaming\9776.F82

Filesize
600B

MD5
4b366c38111f7f2a9bd9d579cab9aea4

SHA1
de72e1680b033e8852c27ba4abb840fc7f0f75dd

SHA256
4f11ff66e2eabdfc6c71dc1ee5eadb471d2e9b0b98029e02aa6049f7917a0888

SHA512
d3fc36e8ef51632584be593ec5570c6aadb968992b9534480abaef5f0883a3d8875e15e7beadaea9dd21ca91abb934ec941717520399056566f00677c7b8ae01

Download Submit
C:\Users\Admin\AppData\Roaming\9776.F82

Filesize
996B

MD5
b04367020c80cae8cd2fea0894222436

SHA1
af2d1e2a6c917b906a45727441ed7be1eab1edff

SHA256
e79e2512b60a21d963363a9372ec411205a73fb1573b23da5996de4a63af63bd

SHA512
cf9b3f808c7965130cc1612998a25c7fe53b4148237d2f1e6e914c353d9642d20b29537577897726efd5827951b36700be033665d230f63df6d3437c97f59e53

Download Submit
memory/2236-1-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2236-2-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2236-14-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2236-73-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2236-168-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2236-207-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2544-5-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2544-7-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2852-72-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads