cycbot | c32b419d78a2d93e837db74d4c12b8e95896f0b1fc1dd431580963c618c20d29

General

Target

JaffaCakes118_013adad2d639fb3845e0409196d4a373.exe
Size

168KB
MD5

013adad2d639fb3845e0409196d4a373
SHA1

37e5ca3cd3507fdcfdcce1eff289b28f079eabf6
SHA256

c32b419d78a2d93e837db74d4c12b8e95896f0b1fc1dd431580963c618c20d29
SHA512

4b5cefcab43c1b9bbb0ab624aa7f6518309270071dabcbc8dd6602397d6e8bd5bef7c6e7cae083170d6d976fd9f16457afe33d56e4fee3ada18c9f8466554c62
SSDEEP

3072:fJLPiUc6ouhSB2x0mwbXw5xiuixOwOYF/9lVNxw0U1K2rKlmi/m5qHIR:f1KUcSyZuixaYF/Lxw0U82rweQIR

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 6 IoCs

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

resource	yara_rule
behavioral1/memory/2104-15-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/2380-16-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral1/memory/2380-17-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/2080-128-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/2380-129-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/2380-307-0x0000000000400000-0x0000000000490000-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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\AA7BD\\1F0DC.exe"	JaffaCakes118_013adad2d639fb3845e0409196d4a373.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 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2380-3-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2104-15-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2380-16-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/2380-17-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2080-127-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2080-128-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2380-129-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2380-307-0x0000000000400000-0x0000000000490000-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	JaffaCakes118_013adad2d639fb3845e0409196d4a373.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_013adad2d639fb3845e0409196d4a373.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_013adad2d639fb3845e0409196d4a373.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2104	2380	JaffaCakes118_013adad2d639fb3845e0409196d4a373.exe	31
PID 2380 wrote to memory of 2104	2380	JaffaCakes118_013adad2d639fb3845e0409196d4a373.exe	31
PID 2380 wrote to memory of 2104	2380	JaffaCakes118_013adad2d639fb3845e0409196d4a373.exe	31
PID 2380 wrote to memory of 2104	2380	JaffaCakes118_013adad2d639fb3845e0409196d4a373.exe	31
PID 2380 wrote to memory of 2080	2380	JaffaCakes118_013adad2d639fb3845e0409196d4a373.exe	33
PID 2380 wrote to memory of 2080	2380	JaffaCakes118_013adad2d639fb3845e0409196d4a373.exe	33
PID 2380 wrote to memory of 2080	2380	JaffaCakes118_013adad2d639fb3845e0409196d4a373.exe	33
PID 2380 wrote to memory of 2080	2380	JaffaCakes118_013adad2d639fb3845e0409196d4a373.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_013adad2d639fb3845e0409196d4a373.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_013adad2d639fb3845e0409196d4a373.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_013adad2d639fb3845e0409196d4a373.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_013adad2d639fb3845e0409196d4a373.exe startC:\Program Files (x86)\LP\DCBA\BDB.exe%C:\Program Files (x86)\LP\DCBA
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2104
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_013adad2d639fb3845e0409196d4a373.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_013adad2d639fb3845e0409196d4a373.exe startC:\Program Files (x86)\BDC6A\lvvm.exe%C:\Program Files (x86)\BDC6A
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2080

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\AA7BD\DC6A.A7B

Filesize
996B

MD5
c8e043980e16d241f10e0f9ec017333e

SHA1
faff58ec2c269e3c306f8c97e74a3717955d43a2

SHA256
539553ef12f4313a5d0ee6720e0ba9becfe66c995abd7e4205cd81b10ac81387

SHA512
05a68f8c92867965b7d6ab3d7f7eb96141cef6ac949df7b6e2d1aa605353865c7435430657728529d148982fb097ab91992f2df06c6af403985cabc74410424a

Download Submit
C:\Users\Admin\AppData\Roaming\AA7BD\DC6A.A7B

Filesize
600B

MD5
677c9b69d7fff2d6de19d954deead671

SHA1
c95b9ce2a21df3169389fa67690d895f84a2cbe3

SHA256
9ee91faafb8d6dbdb248c5860e88c5e7d7893ea8fc7dd37aa182d364ec53d876

SHA512
bf03651bbaf60f562a8e7f666a021a8c26cf0288e00aeb15537a4a275f8feb67684998c4cd529dc60710a161897fbd214fbd140ddc4ca86774dd9b09619bb631

Download Submit
C:\Users\Admin\AppData\Roaming\AA7BD\DC6A.A7B

Filesize
1KB

MD5
d32971be7c0796a77d933dfce5229921

SHA1
dce58061c61e22763c52c13258a61b2dba597f1d

SHA256
45e759ad8a79a097337bf882f74c6f1d50b8ce0a31150d57087a332042953bfd

SHA512
9462701338a2c8dc821fdb123b2726c222345992954831c868359bdcf7776ee4053b87bb61e503bfe09bb7514027addb36dca2d1a658a22489c5cf212fe72b96

Download Submit
memory/2080-128-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2080-127-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2104-15-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2380-17-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2380-16-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2380-0-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2380-129-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2380-3-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2380-2-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2380-307-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads