cycbot | 951d63a2a8f8a6a308b9710030458b897fa3d8ba50f5c4a5c9c52fcf332bec3b

General

Target

d6ce4e036572bfee17db9e184b64f445_JaffaCakes118.exe
Size

179KB
MD5

d6ce4e036572bfee17db9e184b64f445
SHA1

b6626827485b119fde72e6919f0e9f32418a9b10
SHA256

951d63a2a8f8a6a308b9710030458b897fa3d8ba50f5c4a5c9c52fcf332bec3b
SHA512

33a33b3fcfbbd0e885828b90b60ff88a126d3610fc1336a6035ee30d4bae1615e09be92d2a534e0528e6954e7c2ce2ac96c80dc64adf572b66f54d8c3c1ec3f8
SSDEEP

3072:vpBnzXiSQvj5Ib4NhhMjgVoyIe1lSTcNmfwbtDSogsFRShZAQ1ZyyNme+qnm/H:3yR9LNMAee1lLB2VgSAkZ+vUmf

Score

10^/10

cycbot backdoor discovery persistence rat 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
behavioral2/memory/2728-12-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/3084-14-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/3084-79-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/3852-83-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/3084-191-0x0000000000400000-0x000000000048D000-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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\dwm.exe"	d6ce4e036572bfee17db9e184b64f445_JaffaCakes118.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3084-1-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/3084-2-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/2728-12-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/3084-14-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/3084-79-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/3852-81-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/3852-83-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/3084-191-0x0000000000400000-0x000000000048D000-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	d6ce4e036572bfee17db9e184b64f445_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d6ce4e036572bfee17db9e184b64f445_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d6ce4e036572bfee17db9e184b64f445_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3084 wrote to memory of 2728	3084	d6ce4e036572bfee17db9e184b64f445_JaffaCakes118.exe	83
PID 3084 wrote to memory of 2728	3084	d6ce4e036572bfee17db9e184b64f445_JaffaCakes118.exe	83
PID 3084 wrote to memory of 2728	3084	d6ce4e036572bfee17db9e184b64f445_JaffaCakes118.exe	83
PID 3084 wrote to memory of 3852	3084	d6ce4e036572bfee17db9e184b64f445_JaffaCakes118.exe	91
PID 3084 wrote to memory of 3852	3084	d6ce4e036572bfee17db9e184b64f445_JaffaCakes118.exe	91
PID 3084 wrote to memory of 3852	3084	d6ce4e036572bfee17db9e184b64f445_JaffaCakes118.exe	91

C:\Users\Admin\AppData\Local\Temp\d6ce4e036572bfee17db9e184b64f445_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d6ce4e036572bfee17db9e184b64f445_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3084
- C:\Users\Admin\AppData\Local\Temp\d6ce4e036572bfee17db9e184b64f445_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\d6ce4e036572bfee17db9e184b64f445_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2728
- C:\Users\Admin\AppData\Local\Temp\d6ce4e036572bfee17db9e184b64f445_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\d6ce4e036572bfee17db9e184b64f445_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3852

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

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\F9EE.ED8

Filesize
1KB

MD5
e3019a4e532b4b25d7207613b4a23d90

SHA1
845f685b8f489a970d667c9dbc56a220db75fcf1

SHA256
0ea9bbc3e433555c3a43de4cb87339a00b9086f1149ebc2b41c001987984663d

SHA512
4406840e9dfec944fb573db056891226b8b294c8a884ebc4280421589227d6e20428915103766941ca72fb6e4e10753d0f0677e5cf485c595c0040219dce0038

Download Submit
C:\Users\Admin\AppData\Roaming\F9EE.ED8

Filesize
600B

MD5
0805ad5eeaa1a65231cb38eadbd9b364

SHA1
fc3d0adf82337205848f3587dbc99887fa3cba0f

SHA256
7cc5ff2ec8e36547a689eecc2d313e5e02a193076c9bdf94390f71297d791414

SHA512
4242c28b6fd6b49c8c7e3199c1826d33ef7fd759119e37af57df6efa61166ed3a92e2f1811200ae34152fadc33eb2e502fcc76e31dee0770c668794e1ac66383

Download Submit
C:\Users\Admin\AppData\Roaming\F9EE.ED8

Filesize
996B

MD5
460c8d52a386f3c12ccc0a22448ac530

SHA1
f5aa053f62404cb390b7aa0959a7ac1815611b2d

SHA256
fef6ec3cd347855e11f7ffac541a94ad066078cd5943e3f24446dea031b24d79

SHA512
61737370960f398eafb7b1f62d14c40c545b76d47dd6387180cd9e1fc78a7036daed2debe621fe4adfa26878e44cb9a3d2d8ab7e7897b8af1fe96b79a78e1b6c

Download Submit
memory/2728-12-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/3084-1-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/3084-2-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/3084-14-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/3084-79-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/3084-191-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/3852-81-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/3852-83-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads