cycbot | bc70120aeb040d7cd38a1457faa32d98dabadbf735f27326d4344dbfcb673395

General

Target

JaffaCakes118_6e4492c450facbae78de47de6549370e.exe
Size

176KB
MD5

6e4492c450facbae78de47de6549370e
SHA1

6482ed33c1d6c2ec15f5a1d498cbf4736d35faa5
SHA256

bc70120aeb040d7cd38a1457faa32d98dabadbf735f27326d4344dbfcb673395
SHA512

5f897ed57dd720c07124f82753d9b0370f9068f250041cd5bc12e0ce6dfc05cc9b78546f06906b88e60be1a6c566a37fa2c7802f9dae9ca3e6800e10ba1cd4f9
SSDEEP

3072:k4Ys+5za07DdiQ0Y23cWR4GlKnN90k6uP3bESavBXuasG2m//Q:NR+5W07QQ9dGlA9K6AS8+HG2

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/1744-14-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/1744-13-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/3048-16-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/3048-77-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/1040-81-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/3048-184-0x0000000000400000-0x000000000044B000-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_6e4492c450facbae78de47de6549370e.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3048-2-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/1744-14-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/1744-13-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/3048-16-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/3048-77-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/1040-79-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/1040-81-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/3048-184-0x0000000000400000-0x000000000044B000-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_6e4492c450facbae78de47de6549370e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6e4492c450facbae78de47de6549370e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6e4492c450facbae78de47de6549370e.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3048 wrote to memory of 1744	3048	JaffaCakes118_6e4492c450facbae78de47de6549370e.exe	30
PID 3048 wrote to memory of 1744	3048	JaffaCakes118_6e4492c450facbae78de47de6549370e.exe	30
PID 3048 wrote to memory of 1744	3048	JaffaCakes118_6e4492c450facbae78de47de6549370e.exe	30
PID 3048 wrote to memory of 1744	3048	JaffaCakes118_6e4492c450facbae78de47de6549370e.exe	30
PID 3048 wrote to memory of 1040	3048	JaffaCakes118_6e4492c450facbae78de47de6549370e.exe	33
PID 3048 wrote to memory of 1040	3048	JaffaCakes118_6e4492c450facbae78de47de6549370e.exe	33
PID 3048 wrote to memory of 1040	3048	JaffaCakes118_6e4492c450facbae78de47de6549370e.exe	33
PID 3048 wrote to memory of 1040	3048	JaffaCakes118_6e4492c450facbae78de47de6549370e.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6e4492c450facbae78de47de6549370e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6e4492c450facbae78de47de6549370e.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3048
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6e4492c450facbae78de47de6549370e.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6e4492c450facbae78de47de6549370e.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1744
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6e4492c450facbae78de47de6549370e.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6e4492c450facbae78de47de6549370e.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1040

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\66D8.B9D

Filesize
1KB

MD5
f504617e4e894b717abf5ed95cba7f84

SHA1
edc3611630952d04f39132a1c6bc31342d31884c

SHA256
45cd7798bf18fe79e57af2f610e97d100b9b02bba21f5b454a5958fe266963bc

SHA512
727a44b22ef1900c07f82e99a6cb2dd36d4d1e55f89e639c2ab819506ad53f216bd040abf2dcc69e442b62995a6494d364477e96b71ec8645cefd0e6e0d95995

Download Submit
C:\Users\Admin\AppData\Roaming\66D8.B9D

Filesize
600B

MD5
27dca9c70a5c945739e64fa849f4206b

SHA1
a7caa9d8d60cc3f613403207a950026bf6d642b4

SHA256
0b6a12b3a86cf380a902ab879c2632a61c3171ebde3589b22cc957edf5171127

SHA512
25224a918b12ec23378a52e937300e90f3c69c5f60429d54c9968884b47c915fdc3a12b41d12226c9aa206e82d7d7b69b38a14a211b910021b7251108fe32527

Download Submit
C:\Users\Admin\AppData\Roaming\66D8.B9D

Filesize
996B

MD5
349758ccd0a44c53edf17c9528e36708

SHA1
20c41d3c301171c230b60459c033b8bae4818a15

SHA256
f0ee93397fcd5271391a1ee9529e8e92f3ce580bf26d525a654f3583d90b67da

SHA512
cd94713dbb3970db2757b7b76ff610e7fd431a849d7031f625f0010ce71c953d047f219bd232045936f0e7cf4811f716f6997d8f74dd1605c9c2e6e8abe714d2

Download Submit
memory/1040-79-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1040-81-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1744-14-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1744-13-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3048-1-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3048-2-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3048-16-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3048-77-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3048-184-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads