cycbot | 12c2ef3e3dd062923135bb03f7487f8429811cb748f98822d303a1a87fb13592

General

Target

JaffaCakes118_1e8a3386fd870d5d76dd7b06fe9786b7.exe
Size

168KB
MD5

1e8a3386fd870d5d76dd7b06fe9786b7
SHA1

74cde0a331633a99b3549a8edc1b006360da67d9
SHA256

12c2ef3e3dd062923135bb03f7487f8429811cb748f98822d303a1a87fb13592
SHA512

578e22867cb9ee907f3236d8e52a43a53f276cf664cb7ed7a5b6ef0deb2961a0045d2597d65243970daa580919d87e45bb05f43392fdccfe992ff524318e175f
SSDEEP

3072:AqU/dvWKBwW3dU1iJhl45OoaVGjNjGT4k8PLV1q5dSqtF6V8a8ORnC0:QVvj33kiJhlNNVGjATULVQ3SYMd82Z

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 6 IoCs

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

resource	yara_rule
behavioral2/memory/4772-15-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/3964-16-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/3964-17-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/3964-86-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/4840-90-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/3964-189-0x0000000000400000-0x0000000000490000-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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\05202\\FCE24.exe"	JaffaCakes118_1e8a3386fd870d5d76dd7b06fe9786b7.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3964-2-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4772-13-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4772-12-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4772-15-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/3964-16-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/3964-17-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/3964-86-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4840-89-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4840-90-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/3964-189-0x0000000000400000-0x0000000000490000-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	JaffaCakes118_1e8a3386fd870d5d76dd7b06fe9786b7.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3964 wrote to memory of 4772	3964	JaffaCakes118_1e8a3386fd870d5d76dd7b06fe9786b7.exe	83
PID 3964 wrote to memory of 4772	3964	JaffaCakes118_1e8a3386fd870d5d76dd7b06fe9786b7.exe	83
PID 3964 wrote to memory of 4772	3964	JaffaCakes118_1e8a3386fd870d5d76dd7b06fe9786b7.exe	83
PID 3964 wrote to memory of 4840	3964	JaffaCakes118_1e8a3386fd870d5d76dd7b06fe9786b7.exe	92
PID 3964 wrote to memory of 4840	3964	JaffaCakes118_1e8a3386fd870d5d76dd7b06fe9786b7.exe	92
PID 3964 wrote to memory of 4840	3964	JaffaCakes118_1e8a3386fd870d5d76dd7b06fe9786b7.exe	92

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1e8a3386fd870d5d76dd7b06fe9786b7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1e8a3386fd870d5d76dd7b06fe9786b7.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3964
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1e8a3386fd870d5d76dd7b06fe9786b7.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1e8a3386fd870d5d76dd7b06fe9786b7.exe startC:\Program Files (x86)\LP\24B0\C25.exe%C:\Program Files (x86)\LP\24B0
  2⤵
  PID:4772
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1e8a3386fd870d5d76dd7b06fe9786b7.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1e8a3386fd870d5d76dd7b06fe9786b7.exe startC:\Program Files (x86)\02977\lvvm.exe%C:\Program Files (x86)\02977
  2⤵
  PID:4840

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\05202\2977.520

Filesize
1KB

MD5
7aba61ce3f105e1733413126b61edf20

SHA1
89afac229bae269ca6e76d9a00784a489a75918b

SHA256
135bbf4ef7e2a7454ed9f3c6a8fc1ef8825f4334cd46f7831b728b0a4c922566

SHA512
4273cbe06c8e6a65a96aa74097d7dad07ec7cb46172dbe7e675ac2a15676264dc5c3282257916abf289923133eff81abf2f0c81c1226157e167e671a3bcbbacf

Download Submit
C:\Users\Admin\AppData\Roaming\05202\2977.520

Filesize
600B

MD5
5cace1ed1337dd0a8fd65b5c0ac5391a

SHA1
a674c5139ab799f74cc1892e61e21c8009a64965

SHA256
ef5281a3df36448b5fa5a2451cf601cb6e83928c59e5bab298ea06730efed32f

SHA512
c39826d8045effbe9e1c16b53b4b162048ec27fc8d3a950f4f8d2ea6bf41bb51f451d1dbdd8ad601374481bf87b00732b689595cca711fee7171bf20e9766ce9

Download Submit
C:\Users\Admin\AppData\Roaming\05202\2977.520

Filesize
996B

MD5
22d779164fc79355b5cad1f990f59ead

SHA1
76ffdacf59f038b9dd87c484fe886978f6f0b7a8

SHA256
f1ce0d77c6e93ee9b50e2e8d2bd2d517b4cd57b471e47a0c4721d9925fcc999f

SHA512
1487bfc6f25a0290c78515eb5b4d63b5c7d7decaf0654897b1aadfdbaf8418aefd6aa8149ee6536ada7017dd909298c797c92d2debb41b40310068d187e2be30

Download Submit
memory/3964-2-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3964-189-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3964-1-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/3964-16-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/3964-17-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3964-86-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4772-12-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4772-15-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4772-13-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4840-89-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4840-90-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4840-88-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads