cycbot | e0010881f8738b3b02286822f1c697d7ad2b0c3db4c5cb842f2bca004355d217

Analysis

max time kernel
141s
max time network
72s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
24/11/2024, 10:22

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General

Target
940d967bcfe737aa19fcbc0c509b1997_JaffaCakes118.exe
Size 165KB
Sample241124-mep8hsvpcx
SHA256 e0010881f8738b3b02286822f1c697d7ad2b0c3db4c5cb842f2bca004355d217
MD5 940d967bcfe737aa19fcbc0c509b1997
SHA1 c747d87c7811340334ad44776c3cebb4b4772b06
SHA512 64641116236fe2fc31e62e02e8111efd2519b1cd5a150344684693bac2ea5985030058cb5331cf7d7c64a0bd05b84f51cb3df585613dd65c8f4b3c7897bbfaac
SSDEEP 3072:gY03ymoV57tys9FAAS/TFvEzhodQr4MJpwTOd49du2bXh+V+oxMlY:gY0C9VpEKvsvkibDhSto
MD5 SHA1 SHA512 SSDEEP

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 7 IoCs

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

resource	yara_rule
behavioral1/memory/2912-14-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/2528-15-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/2528-16-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral1/memory/2528-125-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/2212-128-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/2212-127-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/2528-290-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\4C289\\82278.exe"	940d967bcfe737aa19fcbc0c509b1997_JaffaCakes118.exe

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/2528-2-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2912-12-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2912-14-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2528-15-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2528-16-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/2528-125-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2212-128-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2212-127-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2528-290-0x0000000000400000-0x0000000000490000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 1 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	940d967bcfe737aa19fcbc0c509b1997_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2528 wrote to memory of 2912	2528	940d967bcfe737aa19fcbc0c509b1997_JaffaCakes118.exe	30
PID 2528 wrote to memory of 2912	2528	940d967bcfe737aa19fcbc0c509b1997_JaffaCakes118.exe	30
PID 2528 wrote to memory of 2912	2528	940d967bcfe737aa19fcbc0c509b1997_JaffaCakes118.exe	30
PID 2528 wrote to memory of 2912	2528	940d967bcfe737aa19fcbc0c509b1997_JaffaCakes118.exe	30
PID 2528 wrote to memory of 2212	2528	940d967bcfe737aa19fcbc0c509b1997_JaffaCakes118.exe	32
PID 2528 wrote to memory of 2212	2528	940d967bcfe737aa19fcbc0c509b1997_JaffaCakes118.exe	32
PID 2528 wrote to memory of 2212	2528	940d967bcfe737aa19fcbc0c509b1997_JaffaCakes118.exe	32
PID 2528 wrote to memory of 2212	2528	940d967bcfe737aa19fcbc0c509b1997_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\940d967bcfe737aa19fcbc0c509b1997_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\940d967bcfe737aa19fcbc0c509b1997_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2528
- C:\Users\Admin\AppData\Local\Temp\940d967bcfe737aa19fcbc0c509b1997_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\940d967bcfe737aa19fcbc0c509b1997_JaffaCakes118.exe startC:\Program Files (x86)\LP\7814\302.exe%C:\Program Files (x86)\LP\7814
  2⤵
  PID:2912
- C:\Users\Admin\AppData\Local\Temp\940d967bcfe737aa19fcbc0c509b1997_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\940d967bcfe737aa19fcbc0c509b1997_JaffaCakes118.exe startC:\Program Files (x86)\89A63\lvvm.exe%C:\Program Files (x86)\89A63
  2⤵
  PID:2212

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

9A63.C28

Path C:\Users\Admin\AppData\Roaming\4C289\9A63.C28
Size 996B
SHA256 c147f11199031ec51d85da1db7666d352f0bf860cc29f4625200c6c9f037c3cd
MD5 a86aeddbf6979f1303e18ca4f523ac74
SHA1 c9e827e969e586a8e20fb1245229cdd121f813b7
SHA512 1ee21d70ecb38cae5274630fa0a52320457e7903865b4fd4e33f73ca6f1297b8f0325b3a2ac5845abad60f450214c33df5a183090ff69729f34c93902ba8d5c7
MD5 SHA1 SHA512

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9A63.C28

Path C:\Users\Admin\AppData\Roaming\4C289\9A63.C28
Size 600B
SHA256 133ae7af9b985c150ee894df300f7cb2b66e5c6542017b3227b6914f69bf6fb0
MD5 c5526fef320728c2331d6c6c85ae1208
SHA1 3141907a8affde3bb2f8bf9d779ca5ec93ea96fd
SHA512 e58c20dedb02ffdb80283caa0d3e8eb93744b8b4bcdce80a4bf82b4112ade135a29803ff318596a2cf8429ed8b817ffdf1dd91c8396f3cf4cb702d5f0cb3ab65
MD5 SHA1 SHA512

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9A63.C28

Path C:\Users\Admin\AppData\Roaming\4C289\9A63.C28
Size 1KB
SHA256 4532dd21b25fbec77668adff8292c4eb1b5a84cc67ed6b3e1d0e6440a5d371c5
MD5 3b1ce7c2e83c197f8510c2c3bd323557
SHA1 a832a76eda6d1520b72f6860322c725e56014a04
SHA512 baaa38a46025fa569deec876fac59394667061f71b87bf009304760c0bdcd03179cc014055ea584c5661623ed2f131558c8dcd94d4eeb62b0e887c1d7343fc82
MD5 SHA1 SHA512

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memory/2212-127-0x0000000000400000-0x0000000000490000-memory.dmp

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memory/2212-128-0x0000000000400000-0x0000000000490000-memory.dmp

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memory/2528-15-0x0000000000400000-0x0000000000490000-memory.dmp

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memory/2528-16-0x0000000000400000-0x000000000048E000-memory.dmp

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memory/2528-125-0x0000000000400000-0x0000000000490000-memory.dmp

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memory/2528-1-0x0000000000400000-0x000000000048E000-memory.dmp

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memory/2528-2-0x0000000000400000-0x0000000000490000-memory.dmp

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memory/2528-290-0x0000000000400000-0x0000000000490000-memory.dmp

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memory/2912-14-0x0000000000400000-0x0000000000490000-memory.dmp

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memory/2912-12-0x0000000000400000-0x0000000000490000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads