cycbot | 18c9bddd29d170371f5658fcc4a848f457c417983038d48ff391cb09a33f65ff

General

Target

JaffaCakes118_7c981c04bba0c25311f3b068b5de8957.exe
Size

185KB
MD5

7c981c04bba0c25311f3b068b5de8957
SHA1

b69217838fb48dbf43a89e3b02b4f46ba7dca0d2
SHA256

18c9bddd29d170371f5658fcc4a848f457c417983038d48ff391cb09a33f65ff
SHA512

448f8e51948028964ac0603452d2181d54ce396d075bbdc32ab74ae196e774dc8d4c36315639d423b14e63223977d6f351b5eb5a4e55a99916425c6f649e8a44
SSDEEP

3072:CFkGPUL3oIEbXDuGtIXZ6OPKQmLo7xw87sXAICyEVHd+u8htw:hKULYIE3u8IXZ663mEW8ByWRn

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/2820-14-0x0000000000400000-0x0000000000455000-memory.dmp	family_cycbot
behavioral1/memory/2276-16-0x0000000000400000-0x0000000000452000-memory.dmp	family_cycbot
behavioral1/memory/2276-15-0x0000000000400000-0x0000000000455000-memory.dmp	family_cycbot
behavioral1/memory/2484-84-0x0000000000400000-0x0000000000455000-memory.dmp	family_cycbot
behavioral1/memory/2276-188-0x0000000000400000-0x0000000000455000-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/2276-2-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/2820-12-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/2820-14-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/2276-16-0x0000000000400000-0x0000000000452000-memory.dmp	upx
behavioral1/memory/2276-15-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/2484-82-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/2484-84-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/2276-188-0x0000000000400000-0x0000000000455000-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_7c981c04bba0c25311f3b068b5de8957.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7c981c04bba0c25311f3b068b5de8957.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7c981c04bba0c25311f3b068b5de8957.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2276 wrote to memory of 2820	2276	JaffaCakes118_7c981c04bba0c25311f3b068b5de8957.exe	30
PID 2276 wrote to memory of 2820	2276	JaffaCakes118_7c981c04bba0c25311f3b068b5de8957.exe	30
PID 2276 wrote to memory of 2820	2276	JaffaCakes118_7c981c04bba0c25311f3b068b5de8957.exe	30
PID 2276 wrote to memory of 2820	2276	JaffaCakes118_7c981c04bba0c25311f3b068b5de8957.exe	30
PID 2276 wrote to memory of 2484	2276	JaffaCakes118_7c981c04bba0c25311f3b068b5de8957.exe	32
PID 2276 wrote to memory of 2484	2276	JaffaCakes118_7c981c04bba0c25311f3b068b5de8957.exe	32
PID 2276 wrote to memory of 2484	2276	JaffaCakes118_7c981c04bba0c25311f3b068b5de8957.exe	32
PID 2276 wrote to memory of 2484	2276	JaffaCakes118_7c981c04bba0c25311f3b068b5de8957.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7c981c04bba0c25311f3b068b5de8957.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7c981c04bba0c25311f3b068b5de8957.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2276
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7c981c04bba0c25311f3b068b5de8957.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7c981c04bba0c25311f3b068b5de8957.exe startC:\Program Files (x86)\LP\EC05\379.exe%C:\Program Files (x86)\LP\EC05
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2820
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7c981c04bba0c25311f3b068b5de8957.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7c981c04bba0c25311f3b068b5de8957.exe startC:\Users\Admin\AppData\Roaming\515EA\6B1EC.exe%C:\Users\Admin\AppData\Roaming\515EA
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2484

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\515EA\A3CF.15E

Filesize
1KB

MD5
b38e9de4e9844774eb56629d23408e4e

SHA1
039a6a02aef825bd7a4e68890e2de3bd4b56a894

SHA256
05796086d936bd03393ae29d15be51b0ff3c898c8586683c9f8667423b77c2b7

SHA512
7b4cc639cf1ec7400c03794e6af413ab0f04a04fc337703e1092a7e81192fc0861ecc174cbe8055fa54c696b2901117a8d7197369e61c7d917ea2dd513b3d5d9

Download Submit
C:\Users\Admin\AppData\Roaming\515EA\A3CF.15E

Filesize
600B

MD5
02da5997ac4855cae0ec232e5327e10e

SHA1
d66797a238308a7604e023ab0a615cfe53ae7fa1

SHA256
a75ef696cdc7f6145bd07bb324588b55974b3d6649b167262c4ed5eefa0f4938

SHA512
b89a123aa53217dc03a2dbf2ca63fde0a567d8dab625f9707f0cdf068e58f4cf47c26670da453cfc7f791845b7258b51d7b10bae95291dce7f65f7320df1965f

Download Submit
C:\Users\Admin\AppData\Roaming\515EA\A3CF.15E

Filesize
996B

MD5
e974c6be5e842128e06cbd4db90b019d

SHA1
36a9cd7f13d6cd6b07078784522d86f9cecd84c8

SHA256
7697421213680561b1f25720df969b08474da31eabefaa97e61cb80a0388c17c

SHA512
5287212fe1c420eda828f336a551239b8dfdbaf2072e7cf7156de3c2b7a0c5f5327c939a39d7b9e32cd04ea180c7104923bc8fb3739d157de0c3e80ef0ef9fb0

Download Submit
memory/2276-1-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2276-2-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2276-188-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2276-16-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2276-15-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2484-84-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2484-82-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2820-14-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2820-12-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2820-11-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download

Analysis

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