cycbot | 12c681c995df3ee0ebfa932a476a813e3d76ea6c67a564b09700431eae28cc38

General

Target

f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe
Size

172KB
MD5

f9194b7e3c5e757d70512c16c6e5905c
SHA1

6dd3fba556e8c9b9671878c137c1a437b036b685
SHA256

12c681c995df3ee0ebfa932a476a813e3d76ea6c67a564b09700431eae28cc38
SHA512

516fd7035937d59690a07c28fdab8748e882dc410e62c884b76782678fc7a493c7560bf327d3f3e0a28201a5a1f05d5001555765d2c2df6df71192d84bca57b7
SSDEEP

3072:97p4RD9L54Gj+Zz/RKQq3niuwI0UD1U4w7ejvTYxD/PcLJWA:RS19yxVpKQ6z1U4w8TYxzH

Score

10^/10

cycbot backdoor discovery persistence 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/3044-14-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2340-15-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2340-86-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/1972-89-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2340-196-0x0000000000400000-0x0000000000445000-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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\conhost = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\conhost.exe"	f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2340-1-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2340-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/3044-12-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/3044-14-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2340-15-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2340-86-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/1972-89-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2340-196-0x0000000000400000-0x0000000000445000-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	f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2340 wrote to memory of 3044	2340	f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe	30
PID 2340 wrote to memory of 3044	2340	f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe	30
PID 2340 wrote to memory of 3044	2340	f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe	30
PID 2340 wrote to memory of 3044	2340	f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe	30
PID 2340 wrote to memory of 1972	2340	f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe	32
PID 2340 wrote to memory of 1972	2340	f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe	32
PID 2340 wrote to memory of 1972	2340	f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe	32
PID 2340 wrote to memory of 1972	2340	f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2340
- C:\Users\Admin\AppData\Local\Temp\f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3044
- C:\Users\Admin\AppData\Local\Temp\f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1972

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

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

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Downloads

C:\Users\Admin\AppData\Roaming\8102.F75

Filesize
1KB

MD5
409d263a3eef0def67170687387acf24

SHA1
47518f9f23c54383291cb88f473a76287889a2e9

SHA256
0f423998991b70e84e5e39eab2d28e20c6d1dfd25519b5b0938cc2cd394dad30

SHA512
7be7ac936009b7a084c7ad57620c6ef5c3a9002562b8cb82b5940f77ded6a05a2223d9cffde30b78fa70c0da88beaa43ac75d7dd386f4be35c15fc7c23b60919

Download Submit
C:\Users\Admin\AppData\Roaming\8102.F75

Filesize
600B

MD5
571415f42ec342d986aa0109d2d42c8c

SHA1
03c1ad5f6430ef91a394471895d8ba9129046e74

SHA256
a5490ee831cdf6c735bff15f4466992d0709a99794ecdd8256f378634a032b5d

SHA512
2e2dd88f7cf1ed40f8fee5648d55891292abff4e90c22d71e11cc83a180a418c8a9126834d6354d2731839d0d243d4a0db4248ab13bb4c2f376a621ff12123dd

Download Submit
C:\Users\Admin\AppData\Roaming\8102.F75

Filesize
996B

MD5
77471eadc22f4d224f9f814bfcaee5d0

SHA1
11d9d2fb3b3fb214cb92fcf6c8498d87b6ad611f

SHA256
c404630736219e76d229da99161490b73f1814a94ede6958c9bad1c5ce436c5f

SHA512
b786826917e0411f4fdd537ef7af71eec6057e265a78fbafa60cc25abebf44307470f53ccebd8271b3bb9e08d98859bb144ff609da7c4e258a97f5e356d25dc1

Download Submit
memory/1972-88-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1972-89-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2340-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2340-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2340-15-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2340-86-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2340-196-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3044-12-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3044-14-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads