cycbot | 0dc9b892d882d07cdab64979f208a1b993ee2f493843b5d84ec8102b42617ef1

General

Target

JaffaCakes118_2f06a9e9f2b95ec354de408e191f30b0.exe
Size

163KB
MD5

2f06a9e9f2b95ec354de408e191f30b0
SHA1

83b7f572a71faef00bab6ecf23f613144d7311d8
SHA256

0dc9b892d882d07cdab64979f208a1b993ee2f493843b5d84ec8102b42617ef1
SHA512

a3d90f4b7adff0e2110dbfe884d953d099ca8c27684380bc82e902a21cc346cd0c767da1074121c21bf4aa844dffa466e48c2f6dbd3f262955bcb105861fd672
SSDEEP

3072:w/ILkyh3CWLBmWJn6ujRcFhUku+vp7cYrfnDQeXtiyCwkcvUghZlL:wAx1CHIcIk5fjXtXCYt

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/2780-12-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral1/memory/2772-14-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral1/memory/1076-80-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral1/memory/1076-79-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral1/memory/2772-81-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral1/memory/2772-183-0x0000000000400000-0x0000000000444000-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_2f06a9e9f2b95ec354de408e191f30b0.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2772-2-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2780-12-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2772-14-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/1076-80-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/1076-79-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2772-81-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2772-183-0x0000000000400000-0x0000000000444000-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_2f06a9e9f2b95ec354de408e191f30b0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2f06a9e9f2b95ec354de408e191f30b0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2f06a9e9f2b95ec354de408e191f30b0.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2772 wrote to memory of 2780	2772	JaffaCakes118_2f06a9e9f2b95ec354de408e191f30b0.exe	30
PID 2772 wrote to memory of 2780	2772	JaffaCakes118_2f06a9e9f2b95ec354de408e191f30b0.exe	30
PID 2772 wrote to memory of 2780	2772	JaffaCakes118_2f06a9e9f2b95ec354de408e191f30b0.exe	30
PID 2772 wrote to memory of 2780	2772	JaffaCakes118_2f06a9e9f2b95ec354de408e191f30b0.exe	30
PID 2772 wrote to memory of 1076	2772	JaffaCakes118_2f06a9e9f2b95ec354de408e191f30b0.exe	32
PID 2772 wrote to memory of 1076	2772	JaffaCakes118_2f06a9e9f2b95ec354de408e191f30b0.exe	32
PID 2772 wrote to memory of 1076	2772	JaffaCakes118_2f06a9e9f2b95ec354de408e191f30b0.exe	32
PID 2772 wrote to memory of 1076	2772	JaffaCakes118_2f06a9e9f2b95ec354de408e191f30b0.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2f06a9e9f2b95ec354de408e191f30b0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2f06a9e9f2b95ec354de408e191f30b0.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_2f06a9e9f2b95ec354de408e191f30b0.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2f06a9e9f2b95ec354de408e191f30b0.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2780
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2f06a9e9f2b95ec354de408e191f30b0.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2f06a9e9f2b95ec354de408e191f30b0.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1076

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\C5AF.21E

Filesize
1KB

MD5
856532d65f3a2f1145d177197454ecff

SHA1
1e09117849a1e05cdfff4de1b73d5d1fbf08170c

SHA256
a287756c2a5aaba5a031a869c28527a9dd2e123cd0a89fad5e0aeaf70c8db20e

SHA512
221a85a6349830535c93638c020a13ada8ec30dcfa1d05d0c3ee21be04b320e3c002038b8cf3573f51720a7643e0bc756b6ea638f6652fff9a9eee6a60a6bf88

Download Submit
C:\Users\Admin\AppData\Roaming\C5AF.21E

Filesize
600B

MD5
1c14d9767c8fbb28aa7fab952369d1b5

SHA1
3914d40fee87f1616b1bed56932f2d61428d1b3b

SHA256
e38696da598b02f66509524bc0b65cc4da834b950619aeb7994965142489c1d6

SHA512
8e9fba1b3bd7fb852b54b22ab59d4517aaabdb95732a464e9d98d161ce9eb3cc84872cb4d5c13ef60edb6b605347e35dc00cb35c83f0d294bab19394c91fe4ce

Download Submit
C:\Users\Admin\AppData\Roaming\C5AF.21E

Filesize
996B

MD5
694e17bba8a54292d72ece8c29932779

SHA1
54883900f131895341c4dee57425cf3057bcf263

SHA256
59fa15d5d6a1b0dacd05085d2d5110416f8f750d0a2fcff354de89d83fc7083b

SHA512
5acc1a2b38d91f95add4be9897e4d04ee1ae0b997c302bc6078412ee73e1d85fb22350d62ed56658136b82f1b5195b961a48e077a7d33cc82cfe7919eaa6a553

Download Submit
memory/1076-80-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1076-79-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1076-77-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2772-1-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2772-2-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2772-14-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2772-81-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2772-183-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2780-12-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads