cycbot | a3bdf89307e1ff48a04c4a2a92e12674e4bf5c2d2272d152ffd14542074092c1

General

Target

JaffaCakes118_b930233139d4f03d842e104d6f6afb9d.exe
Size

185KB
MD5

b930233139d4f03d842e104d6f6afb9d
SHA1

5b34cd1b06c9f3d3a65e57e20142d7e358257662
SHA256

a3bdf89307e1ff48a04c4a2a92e12674e4bf5c2d2272d152ffd14542074092c1
SHA512

5f553a8fa3e4b35ffbc0d840f5b9ea96e53f3311004d8395c798f009add8d5fbc1dfda50e3434967f164748bcb8ee8ccf973c6917a945bc8b2f0bbcc3ebc1327
SSDEEP

3072:LEhruDjbqkSoGsBj/4TJPZdxiqfUh17zVhpyfUh+hvHWbh49g3UlAiYN:UrumPEjwrC17J6Uwt+h49eUW

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 5 IoCs

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

resource	yara_rule
behavioral1/memory/2388-13-0x0000000000400000-0x0000000000455000-memory.dmp	family_cycbot
behavioral1/memory/2556-15-0x0000000000400000-0x0000000000452000-memory.dmp	family_cycbot
behavioral1/memory/2556-16-0x0000000000400000-0x0000000000455000-memory.dmp	family_cycbot
behavioral1/memory/2436-82-0x0000000000400000-0x0000000000455000-memory.dmp	family_cycbot
behavioral1/memory/2556-187-0x0000000000400000-0x0000000000455000-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 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2556-2-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/2388-14-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/2388-13-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/2556-15-0x0000000000400000-0x0000000000452000-memory.dmp	upx
behavioral1/memory/2556-16-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/2436-81-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/2436-82-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/2556-187-0x0000000000400000-0x0000000000455000-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_b930233139d4f03d842e104d6f6afb9d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b930233139d4f03d842e104d6f6afb9d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b930233139d4f03d842e104d6f6afb9d.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2556 wrote to memory of 2388	2556	JaffaCakes118_b930233139d4f03d842e104d6f6afb9d.exe	30
PID 2556 wrote to memory of 2388	2556	JaffaCakes118_b930233139d4f03d842e104d6f6afb9d.exe	30
PID 2556 wrote to memory of 2388	2556	JaffaCakes118_b930233139d4f03d842e104d6f6afb9d.exe	30
PID 2556 wrote to memory of 2388	2556	JaffaCakes118_b930233139d4f03d842e104d6f6afb9d.exe	30
PID 2556 wrote to memory of 2436	2556	JaffaCakes118_b930233139d4f03d842e104d6f6afb9d.exe	33
PID 2556 wrote to memory of 2436	2556	JaffaCakes118_b930233139d4f03d842e104d6f6afb9d.exe	33
PID 2556 wrote to memory of 2436	2556	JaffaCakes118_b930233139d4f03d842e104d6f6afb9d.exe	33
PID 2556 wrote to memory of 2436	2556	JaffaCakes118_b930233139d4f03d842e104d6f6afb9d.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b930233139d4f03d842e104d6f6afb9d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b930233139d4f03d842e104d6f6afb9d.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2556
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b930233139d4f03d842e104d6f6afb9d.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b930233139d4f03d842e104d6f6afb9d.exe startC:\Program Files (x86)\LP\8E33\D5A.exe%C:\Program Files (x86)\LP\8E33
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2388
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b930233139d4f03d842e104d6f6afb9d.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b930233139d4f03d842e104d6f6afb9d.exe startC:\Users\Admin\AppData\Roaming\37950\DBD8E.exe%C:\Users\Admin\AppData\Roaming\37950
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2436

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\37950\0E1A.795

Filesize
1KB

MD5
f5918dc215c7772bd6a5a70ec33433f5

SHA1
d4ac45d8601c1b8976fba2a5286da8a4fce72f0e

SHA256
c7df463b6604000ddec017b7d30ee7a5ad993f11aab2dca0940dd276bcc56f73

SHA512
5d21ee0f9ee36220b237663c48138e081085559ff71a708d77a8b759b3c5c8988a22a45a9392158fcdbf42ada31feb4f9ed3ea6d96aec77ec4397beeea635dbc

Download Submit
C:\Users\Admin\AppData\Roaming\37950\0E1A.795

Filesize
600B

MD5
df280dd4e4df6997f99ba1c0db56b06d

SHA1
31fd2824b47d370bbfe025454a7ce864667152b8

SHA256
89856e5f097f17ce1f5108f7eddbecf713f416d1194c13cbfe371c72271fe78b

SHA512
5f0189e0e92cd6388601f613d4269edf937ebc8f6331ebc7dddf77c7cfce705abcbcb3519588f238e4d1b455f0ee0a4afa46a52646eed3830dc96feb7411f8d8

Download Submit
C:\Users\Admin\AppData\Roaming\37950\0E1A.795

Filesize
996B

MD5
0e3d45cf9a0ea91bee553de7c4f7faef

SHA1
7b739e825302010ff5b6220a9777e39ae98f2f41

SHA256
77431101a32ccb78d889b1b5947bc43eb027172f70fc79004cb6b216bec64ffd

SHA512
8cadfccafeefda5cdc9e679cb9a0523b8df04de8ae397754a2c2d96768fe3cfef03b685cdc2018a1454cb56f98ed23e28f38dceaa01d324c49f1ce633dbca4ca

Download Submit
memory/2388-11-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2388-14-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2388-13-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2436-82-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2436-81-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2556-16-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2556-1-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2556-15-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2556-2-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2556-187-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download

Analysis

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