cycbot | 23c416b6aaf2cc74f15cf5aeba5c273689bcf94341d38b5ed2880f856cdedf1a

General

Target

VirusShare_0041468cec04e095da767bd3ffad910e.exe
Size

181KB
MD5

0041468cec04e095da767bd3ffad910e
SHA1

5a6a83a7e43a4b8fe0d76f446c24d9a56acb58ec
SHA256

23c416b6aaf2cc74f15cf5aeba5c273689bcf94341d38b5ed2880f856cdedf1a
SHA512

8e4462169b00c0f53228ff113e9d45825c2d0858a5adf0b56d8bcc411db7192701492ae9f7510f77ab9358dae7848504d7daff1f16b0994833e1fde6bfdae29c
SSDEEP

3072:979cHcYvPbo1hIVgrLZlbDSKQ+Y9nkN4YqgYi8jODMwgqRKf7n3rn:979lYbCeSLbDBQ+Y9Eqgd5gG2

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/2920-14-0x0000000000400000-0x000000000044F000-memory.dmp	family_cycbot
behavioral1/memory/1992-15-0x0000000000400000-0x000000000044F000-memory.dmp	family_cycbot
behavioral1/memory/836-85-0x0000000000400000-0x000000000044F000-memory.dmp	family_cycbot
behavioral1/memory/1992-198-0x0000000000400000-0x000000000044F000-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/1992-2-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral1/memory/2920-12-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral1/memory/2920-14-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral1/memory/1992-15-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral1/memory/836-84-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral1/memory/836-85-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral1/memory/1992-198-0x0000000000400000-0x000000000044F000-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	VirusShare_0041468cec04e095da767bd3ffad910e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	VirusShare_0041468cec04e095da767bd3ffad910e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	VirusShare_0041468cec04e095da767bd3ffad910e.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1992 wrote to memory of 2920	1992	VirusShare_0041468cec04e095da767bd3ffad910e.exe	31
PID 1992 wrote to memory of 2920	1992	VirusShare_0041468cec04e095da767bd3ffad910e.exe	31
PID 1992 wrote to memory of 2920	1992	VirusShare_0041468cec04e095da767bd3ffad910e.exe	31
PID 1992 wrote to memory of 2920	1992	VirusShare_0041468cec04e095da767bd3ffad910e.exe	31
PID 1992 wrote to memory of 836	1992	VirusShare_0041468cec04e095da767bd3ffad910e.exe	33
PID 1992 wrote to memory of 836	1992	VirusShare_0041468cec04e095da767bd3ffad910e.exe	33
PID 1992 wrote to memory of 836	1992	VirusShare_0041468cec04e095da767bd3ffad910e.exe	33
PID 1992 wrote to memory of 836	1992	VirusShare_0041468cec04e095da767bd3ffad910e.exe	33

C:\Users\Admin\AppData\Local\Temp\VirusShare_0041468cec04e095da767bd3ffad910e.exe
"C:\Users\Admin\AppData\Local\Temp\VirusShare_0041468cec04e095da767bd3ffad910e.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Users\Admin\AppData\Local\Temp\VirusShare_0041468cec04e095da767bd3ffad910e.exe
  C:\Users\Admin\AppData\Local\Temp\VirusShare_0041468cec04e095da767bd3ffad910e.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2920
- C:\Users\Admin\AppData\Local\Temp\VirusShare_0041468cec04e095da767bd3ffad910e.exe
  C:\Users\Admin\AppData\Local\Temp\VirusShare_0041468cec04e095da767bd3ffad910e.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:836

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\8373.BF3

Filesize
1KB

MD5
9658e04524f4d695aa9538a0f408df21

SHA1
6653ef9b3df2203877bb356f1eab74a37b20619d

SHA256
6bc121efcd3f595ee7a3707c9dacc35470f6815d86e7716893660ab3888ccdc8

SHA512
29f18aa75428a267d3bfb8d68620f0563d34891003bc50c9468db1b1946d2b978bbf4500e55a5cefc765e3a513bd6487073690884f373999514724129726dd81

Download Submit
C:\Users\Admin\AppData\Roaming\8373.BF3

Filesize
600B

MD5
e5494a7445c74c6a4b19b1dabe7dc2d1

SHA1
a88363177b7994a370dc2f7f3ca9524ed41ef5cd

SHA256
29797a89971093896c3c5c4c32bf3fbda1edd1a3f2b6407879c51c5670a8ac9e

SHA512
4a5d59b1ac021f4bd648db9ef64fdd9791b2be042bca7cb9c0a84e26c610745472b554e430a48e0df54e2e4b60a06714dc34834a139e2673ffd57f2e8ef12aba

Download Submit
C:\Users\Admin\AppData\Roaming\8373.BF3

Filesize
996B

MD5
9e34fee385fd73477356551b061d2055

SHA1
7366590917ebae1de7f2c9e7d7de4b9c72b20bfe

SHA256
45a31c5d181a5c901caac1a770f09d5f89c70766e99f2c132e8016363d7cce18

SHA512
c32fbf855fc93e98fffce70673f238e1201d72c23d0d2718a617d4a48c9757828d8211be24e5eb409b16bc239a2b682e82401c362d91b455caf83f9576b9e3e4

Download Submit
memory/836-84-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/836-85-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1992-1-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1992-2-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1992-15-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1992-198-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2920-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2920-14-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

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