cycbot | 381a38685bf71e10a9b240c3ffa9c7e2af1a8f93a5276c40078cfd219fcb3502

General

Target

381a38685bf71e10a9b240c3ffa9c7e2af1a8f93a5276c40078cfd219fcb3502N.exe
Size

195KB
MD5

cedb60895a10252742060e1e99a38070
SHA1

3be121ff592a7479b5019ec92c351691bb3ffd12
SHA256

381a38685bf71e10a9b240c3ffa9c7e2af1a8f93a5276c40078cfd219fcb3502
SHA512

d0d3963913e27d7fb9ad1206a3564fb504d32cececfb3faf42b6556eb747ab5ddcbc808fb093932305342f9caf4daedfa1b2b4e0482a1dac0442a482bdfbfb2b
SSDEEP

3072:nrjhsOwbilBFoGKiZsEe+4k+ua41XUD1UtKVYLYgs+wdylBvoVLMvIzrHbxWCI:D2wZsjb36XUmsVY/lVoqwzrsr

Score

10^/10

cycbot backdoor discovery 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 4 IoCs

Cycbot is a backdoor and trojan written in C++.

resource	yara_rule
behavioral1/memory/2288-9-0x0000000000400000-0x0000000000471000-memory.dmp	family_cycbot
behavioral1/memory/2684-15-0x0000000000400000-0x0000000000471000-memory.dmp	family_cycbot
behavioral1/memory/1320-85-0x0000000000400000-0x0000000000471000-memory.dmp	family_cycbot
behavioral1/memory/2684-181-0x0000000000400000-0x0000000000471000-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

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2684-2-0x0000000000400000-0x0000000000471000-memory.dmp	upx
behavioral1/memory/2288-9-0x0000000000400000-0x0000000000471000-memory.dmp	upx
behavioral1/memory/2288-8-0x0000000000400000-0x0000000000471000-memory.dmp	upx
behavioral1/memory/2684-15-0x0000000000400000-0x0000000000471000-memory.dmp	upx
behavioral1/memory/1320-84-0x0000000000400000-0x0000000000471000-memory.dmp	upx
behavioral1/memory/1320-85-0x0000000000400000-0x0000000000471000-memory.dmp	upx
behavioral1/memory/2684-181-0x0000000000400000-0x0000000000471000-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	381a38685bf71e10a9b240c3ffa9c7e2af1a8f93a5276c40078cfd219fcb3502N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	381a38685bf71e10a9b240c3ffa9c7e2af1a8f93a5276c40078cfd219fcb3502N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	381a38685bf71e10a9b240c3ffa9c7e2af1a8f93a5276c40078cfd219fcb3502N.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2684 wrote to memory of 2288	2684	381a38685bf71e10a9b240c3ffa9c7e2af1a8f93a5276c40078cfd219fcb3502N.exe	30
PID 2684 wrote to memory of 2288	2684	381a38685bf71e10a9b240c3ffa9c7e2af1a8f93a5276c40078cfd219fcb3502N.exe	30
PID 2684 wrote to memory of 2288	2684	381a38685bf71e10a9b240c3ffa9c7e2af1a8f93a5276c40078cfd219fcb3502N.exe	30
PID 2684 wrote to memory of 2288	2684	381a38685bf71e10a9b240c3ffa9c7e2af1a8f93a5276c40078cfd219fcb3502N.exe	30
PID 2684 wrote to memory of 1320	2684	381a38685bf71e10a9b240c3ffa9c7e2af1a8f93a5276c40078cfd219fcb3502N.exe	32
PID 2684 wrote to memory of 1320	2684	381a38685bf71e10a9b240c3ffa9c7e2af1a8f93a5276c40078cfd219fcb3502N.exe	32
PID 2684 wrote to memory of 1320	2684	381a38685bf71e10a9b240c3ffa9c7e2af1a8f93a5276c40078cfd219fcb3502N.exe	32
PID 2684 wrote to memory of 1320	2684	381a38685bf71e10a9b240c3ffa9c7e2af1a8f93a5276c40078cfd219fcb3502N.exe	32

C:\Users\Admin\AppData\Local\Temp\381a38685bf71e10a9b240c3ffa9c7e2af1a8f93a5276c40078cfd219fcb3502N.exe
"C:\Users\Admin\AppData\Local\Temp\381a38685bf71e10a9b240c3ffa9c7e2af1a8f93a5276c40078cfd219fcb3502N.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2684
- C:\Users\Admin\AppData\Local\Temp\381a38685bf71e10a9b240c3ffa9c7e2af1a8f93a5276c40078cfd219fcb3502N.exe
  C:\Users\Admin\AppData\Local\Temp\381a38685bf71e10a9b240c3ffa9c7e2af1a8f93a5276c40078cfd219fcb3502N.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2288
- C:\Users\Admin\AppData\Local\Temp\381a38685bf71e10a9b240c3ffa9c7e2af1a8f93a5276c40078cfd219fcb3502N.exe
  C:\Users\Admin\AppData\Local\Temp\381a38685bf71e10a9b240c3ffa9c7e2af1a8f93a5276c40078cfd219fcb3502N.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1320

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\AABD.B29

Filesize
1KB

MD5
c6a44eb37348bfc4bfba32e8ed4ef90a

SHA1
79b75483439a3822606d78df57ad6e859253f70f

SHA256
5435ef5185149698b09f1bbe6076f21f208d727b9a505f10ddd41dc96241cbfc

SHA512
13a819c33e167f434680a4a19609a730d1206bb77832e9b2cc57f0737120772b7fe2a8aedb1f2f0b2cf6796eb274c732ed418af992274465754d5da1f8a63b9d

Download Submit
C:\Users\Admin\AppData\Roaming\AABD.B29

Filesize
600B

MD5
4b2131935c7ef18728ecd41e5b90fbb5

SHA1
345ddcb76e2ddb54a72a6490daf36b4d869d4151

SHA256
bc76c52d840bc5f4c6736d565cd0828eb19da09688f39321abbf5ccd28a01287

SHA512
e6eccab1a3d967c06f16e4fadac6605347781ae45123ae56468d8ebb3eccef64493591e45b7c033a8546c8981a785a46f2d4ac0abd7afad1648266961276f01b

Download Submit
C:\Users\Admin\AppData\Roaming\AABD.B29

Filesize
996B

MD5
bb3ee7be275ac31d7ed141a8b2167970

SHA1
824ae83cbc827546ee0e45cbc9a7b62649c1d91f

SHA256
0d509412987e9476a0e77117ca7fac063d3fb1607ea50945d30a930cedcc08a0

SHA512
598bf4800fe8967d5f2753c411904d0d860926c020b783b80273a88e55c460cf6e4e848f17eee5a6563165dd948858c71149bb4b9006089381a9ccb954cbad36

Download Submit
memory/1320-84-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/1320-85-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2288-9-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2288-8-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2684-1-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2684-2-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2684-15-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2684-181-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download

Analysis

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