cycbot | e0010881f8738b3b02286822f1c697d7ad2b0c3db4c5cb842f2bca004355d217

General

Target

940d967bcfe737aa19fcbc0c509b1997_JaffaCakes118.exe
Size

165KB
MD5

940d967bcfe737aa19fcbc0c509b1997
SHA1

c747d87c7811340334ad44776c3cebb4b4772b06
SHA256

e0010881f8738b3b02286822f1c697d7ad2b0c3db4c5cb842f2bca004355d217
SHA512

64641116236fe2fc31e62e02e8111efd2519b1cd5a150344684693bac2ea5985030058cb5331cf7d7c64a0bd05b84f51cb3df585613dd65c8f4b3c7897bbfaac
SSDEEP

3072:gY03ymoV57tys9FAAS/TFvEzhodQr4MJpwTOd49du2bXh+V+oxMlY:gY0C9VpEKvsvkibDhSto

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++.

Processes:

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

Processes:

940d967bcfe737aa19fcbc0c509b1997_JaffaCakes118.exe

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

Processes:

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

Processes:

940d967bcfe737aa19fcbc0c509b1997_JaffaCakes118.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	940d967bcfe737aa19fcbc0c509b1997_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

940d967bcfe737aa19fcbc0c509b1997_JaffaCakes118.exe

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

1

T1547

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\4C289\9A63.C28

Filesize
996B

MD5
a86aeddbf6979f1303e18ca4f523ac74

SHA1
c9e827e969e586a8e20fb1245229cdd121f813b7

SHA256
c147f11199031ec51d85da1db7666d352f0bf860cc29f4625200c6c9f037c3cd

SHA512
1ee21d70ecb38cae5274630fa0a52320457e7903865b4fd4e33f73ca6f1297b8f0325b3a2ac5845abad60f450214c33df5a183090ff69729f34c93902ba8d5c7

Download Submit
C:\Users\Admin\AppData\Roaming\4C289\9A63.C28

Filesize
600B

MD5
c5526fef320728c2331d6c6c85ae1208

SHA1
3141907a8affde3bb2f8bf9d779ca5ec93ea96fd

SHA256
133ae7af9b985c150ee894df300f7cb2b66e5c6542017b3227b6914f69bf6fb0

SHA512
e58c20dedb02ffdb80283caa0d3e8eb93744b8b4bcdce80a4bf82b4112ade135a29803ff318596a2cf8429ed8b817ffdf1dd91c8396f3cf4cb702d5f0cb3ab65

Download Submit
C:\Users\Admin\AppData\Roaming\4C289\9A63.C28

Filesize
1KB

MD5
3b1ce7c2e83c197f8510c2c3bd323557

SHA1
a832a76eda6d1520b72f6860322c725e56014a04

SHA256
4532dd21b25fbec77668adff8292c4eb1b5a84cc67ed6b3e1d0e6440a5d371c5

SHA512
baaa38a46025fa569deec876fac59394667061f71b87bf009304760c0bdcd03179cc014055ea584c5661623ed2f131558c8dcd94d4eeb62b0e887c1d7343fc82

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

Filesize
576KB

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

Filesize
576KB

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

Filesize
576KB

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

Filesize
568KB

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

Filesize
576KB

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

Filesize
568KB

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

Filesize
576KB

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

Filesize
576KB

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

Filesize
576KB

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

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads