cycbot | bd8c4f03932fa0171cf1fbd040d50269c1e3b7c7d84b04975753b3247e4652db

General

Target

f038c8abcb879e38bf27acb8db28e2a0_JaffaCakes118.exe
Size

187KB
MD5

f038c8abcb879e38bf27acb8db28e2a0
SHA1

1c1fc5e80fd8b284607cfbaf9b8bf9b0cc58cdb4
SHA256

bd8c4f03932fa0171cf1fbd040d50269c1e3b7c7d84b04975753b3247e4652db
SHA512

637d73485aed793f9bada597a58593d8f5a0a9fbae862e7dea46fc6864c933bd5f84babcc1355d7418c5d147bc10732bb1e6408ad2792ed744011a8775d60f8d
SSDEEP

3072:fb9fR6vPhkm9gDdMM9T4wYkgVGIeuK9RWZBmVPKCuoyH:fb9J6BkDdMMCwYkgwbu2VVPnuoU

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/2732-11-0x0000000000400000-0x000000000044E000-memory.dmp	family_cycbot
behavioral1/memory/2732-10-0x0000000000400000-0x000000000044E000-memory.dmp	family_cycbot
behavioral1/memory/2936-16-0x0000000000400000-0x000000000044E000-memory.dmp	family_cycbot
behavioral1/memory/3000-95-0x0000000000400000-0x000000000044E000-memory.dmp	family_cycbot
behavioral1/memory/2936-168-0x0000000000400000-0x000000000044E000-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/2936-2-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/2732-8-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/2732-11-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/2732-10-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/2936-16-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/3000-93-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/3000-95-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/2936-168-0x0000000000400000-0x000000000044E000-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	f038c8abcb879e38bf27acb8db28e2a0_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f038c8abcb879e38bf27acb8db28e2a0_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f038c8abcb879e38bf27acb8db28e2a0_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2936 wrote to memory of 2732	2936	f038c8abcb879e38bf27acb8db28e2a0_JaffaCakes118.exe	30
PID 2936 wrote to memory of 2732	2936	f038c8abcb879e38bf27acb8db28e2a0_JaffaCakes118.exe	30
PID 2936 wrote to memory of 2732	2936	f038c8abcb879e38bf27acb8db28e2a0_JaffaCakes118.exe	30
PID 2936 wrote to memory of 2732	2936	f038c8abcb879e38bf27acb8db28e2a0_JaffaCakes118.exe	30
PID 2936 wrote to memory of 3000	2936	f038c8abcb879e38bf27acb8db28e2a0_JaffaCakes118.exe	32
PID 2936 wrote to memory of 3000	2936	f038c8abcb879e38bf27acb8db28e2a0_JaffaCakes118.exe	32
PID 2936 wrote to memory of 3000	2936	f038c8abcb879e38bf27acb8db28e2a0_JaffaCakes118.exe	32
PID 2936 wrote to memory of 3000	2936	f038c8abcb879e38bf27acb8db28e2a0_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\f038c8abcb879e38bf27acb8db28e2a0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f038c8abcb879e38bf27acb8db28e2a0_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2936
- C:\Users\Admin\AppData\Local\Temp\f038c8abcb879e38bf27acb8db28e2a0_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f038c8abcb879e38bf27acb8db28e2a0_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2732
- C:\Users\Admin\AppData\Local\Temp\f038c8abcb879e38bf27acb8db28e2a0_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f038c8abcb879e38bf27acb8db28e2a0_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3000

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\2305.1B8

Filesize
1KB

MD5
9767935f6082a3d7e72d9a89ccbe761e

SHA1
9609f2326987637a6721891d5ae2a618c779a312

SHA256
5dba7e4edd859ad47dff80a361c51708017c1777cdaf0567d4c9022f0499bd3f

SHA512
519dfda71cf4e6cc324dc59d1a187fdbbcc180f19df763666067d85458e5cc14eb780a4a54e22886cf5927eaafa5403ba659a200b854a20f3ef821337f67b1c2

Download Submit
C:\Users\Admin\AppData\Roaming\2305.1B8

Filesize
600B

MD5
ac6b8b88b3616b6f86081fbb57f2e0e1

SHA1
c84c1f482457895f72dfccb058338ed5c79b03d7

SHA256
49b2d2faa4b0bc3d7946b2eb562f36771b9bf19cc99802814210d566f0a6961a

SHA512
693b982dd7d45d65c4f75fa76b4d999c1150dfb9562b9946c2ea64fa062a0766dbe2581dd8adde50145a272c526a700d2c5cbc116eebd55413b5eedf23ff0423

Download Submit
C:\Users\Admin\AppData\Roaming\2305.1B8

Filesize
996B

MD5
6aef75b55eb9245a769678f7233257d6

SHA1
997ab80077fff18c0f49e1a6a1410ba2672a4c67

SHA256
c3a4073eba801c2cc0c5791cf5fee45ff55e7dbbff3246ec23e8c6775d2d9c34

SHA512
b557fc45c2e19ba7e680f435ee984d6c6a0038eda64ff168d5157652085fe55200fa91f9493feb8e195fe5dc081396d05195d020e6bdb3b922bef711475419eb

Download Submit
memory/2732-8-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2732-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2732-10-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2936-1-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2936-2-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2936-16-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2936-168-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3000-93-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3000-95-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing