cycbot | 9a081595e77993711f68d85e25321eec7c7b1b7cd6c89593f6443ae5450f6952

General

Target

JaffaCakes118_937f144b16d10c8efdff08055d637589.exe
Size

170KB
MD5

937f144b16d10c8efdff08055d637589
SHA1

307eff2f1e42e2e5dcb054730d3d5d55e82357b0
SHA256

9a081595e77993711f68d85e25321eec7c7b1b7cd6c89593f6443ae5450f6952
SHA512

f53b43dc163529f70ea1c185357022ebc83cc1e70afd72714eda004ab6dbebe3437f317990472c76d710af29763832b0349b649ae40b8b894be4d3d18f7b1674
SSDEEP

3072:srsxR5GmMgjNvn0COV/89SPk81uRRzA23uRn43szMaoAn:sAxR4/qNv0FtmzRzAYXsLVn

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/2672-7-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/2756-15-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/2500-85-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/2756-185-0x0000000000400000-0x000000000044B000-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

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2756-1-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2756-2-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2672-6-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2672-5-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2672-7-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2756-15-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2500-83-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2500-85-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2756-185-0x0000000000400000-0x000000000044B000-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_937f144b16d10c8efdff08055d637589.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_937f144b16d10c8efdff08055d637589.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_937f144b16d10c8efdff08055d637589.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2756 wrote to memory of 2672	2756	JaffaCakes118_937f144b16d10c8efdff08055d637589.exe	30
PID 2756 wrote to memory of 2672	2756	JaffaCakes118_937f144b16d10c8efdff08055d637589.exe	30
PID 2756 wrote to memory of 2672	2756	JaffaCakes118_937f144b16d10c8efdff08055d637589.exe	30
PID 2756 wrote to memory of 2672	2756	JaffaCakes118_937f144b16d10c8efdff08055d637589.exe	30
PID 2756 wrote to memory of 2500	2756	JaffaCakes118_937f144b16d10c8efdff08055d637589.exe	32
PID 2756 wrote to memory of 2500	2756	JaffaCakes118_937f144b16d10c8efdff08055d637589.exe	32
PID 2756 wrote to memory of 2500	2756	JaffaCakes118_937f144b16d10c8efdff08055d637589.exe	32
PID 2756 wrote to memory of 2500	2756	JaffaCakes118_937f144b16d10c8efdff08055d637589.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_937f144b16d10c8efdff08055d637589.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_937f144b16d10c8efdff08055d637589.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_937f144b16d10c8efdff08055d637589.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_937f144b16d10c8efdff08055d637589.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2672
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_937f144b16d10c8efdff08055d637589.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_937f144b16d10c8efdff08055d637589.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2500

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\A3C2.1F1

Filesize
1KB

MD5
044ac9cd0209b42642b0c7f1ba691e50

SHA1
6493081469d6e101745f8b9030cf1c20982a8c50

SHA256
a4b0fce30241b78fbb413e15ddbc8effe995b3e261c026564d8bc16d195d2c31

SHA512
e058aab974b775f86d2456c83e642ff3b3d0a21613a36edc7ddd04b9258ccc2a10a6cad852703be1d582220f946b8f5841a5334143103a32242edbb63b46ca46

Download Submit
C:\Users\Admin\AppData\Roaming\A3C2.1F1

Filesize
600B

MD5
460de2c0125905da90fad2a84664688e

SHA1
8a3d696cd46ec33cfa45cb316997bf56e7c663ae

SHA256
6c4f67b37c696b0c65c70f0b2d4bb4737144bc31c4a3a33723c518064adc86ae

SHA512
a9b9e1063f9b1a37a87549d373f06cfc5fdf4581fe3cbe843e364719dc73377f4c42c949a17e254c1fdff9b38320a0e8d83a6da5002b9b313412cc41537475fd

Download Submit
C:\Users\Admin\AppData\Roaming\A3C2.1F1

Filesize
996B

MD5
6f9032b3f2b25c6657c2b9f42097eb10

SHA1
0c8e12428340fa07d326b362db129033fa6b082a

SHA256
f0ae876a6ce6f5f16b0e2087d0f59bdbf07bfb713f3b56a3a6049ad319c83011

SHA512
6b4d04b47cf86d09c1dd0f0fe3aa6c935c3e9e0a8c6d6afd72610ecfa04c6083df1c4ab4604ceff3bd7d08c223d1bcd614f6089cf91e7a3706eeab2c14ced895

Download Submit
memory/2500-85-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2500-82-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2500-83-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2672-7-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2672-5-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2672-6-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2756-15-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2756-1-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2756-2-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2756-185-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download

Analysis

Sharing