cycbot | 7f7520e16844cdc4b7b7fd1d2e665b2408c20b1c38e294f72f1547e3aa7555ea

General

Target

995de7c2eab5ffe9ec7130727263b74c_JaffaCakes118.exe
Size

164KB
MD5

995de7c2eab5ffe9ec7130727263b74c
SHA1

5d6e729300b0041158b27403d317889334f96e14
SHA256

7f7520e16844cdc4b7b7fd1d2e665b2408c20b1c38e294f72f1547e3aa7555ea
SHA512

331c5e35407e0bebbea584bb86d393002d65bfaeffa05862b8bc29a5b9a9f91dca36c81432c716c18ad416684cf923c1051a9531cd646eef1ca961a1cc8c7053
SSDEEP

3072:07rI78PtWUmWdQfzXCckRLiO0ewYYuSn1g6oJoRzPYYOlsiS:07rjPVQbXzkROtemN1g7cqlsi

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/4984-15-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/3968-16-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/3968-17-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral2/memory/4796-115-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/3968-116-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/3968-290-0x0000000000400000-0x0000000000491000-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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\08FD4\\C41F9.exe"	995de7c2eab5ffe9ec7130727263b74c_JaffaCakes118.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3968-3-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4984-14-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4984-15-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/3968-16-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/3968-17-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral2/memory/4796-115-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/3968-116-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/3968-290-0x0000000000400000-0x0000000000491000-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	995de7c2eab5ffe9ec7130727263b74c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	995de7c2eab5ffe9ec7130727263b74c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	995de7c2eab5ffe9ec7130727263b74c_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3968 wrote to memory of 4984	3968	995de7c2eab5ffe9ec7130727263b74c_JaffaCakes118.exe	86
PID 3968 wrote to memory of 4984	3968	995de7c2eab5ffe9ec7130727263b74c_JaffaCakes118.exe	86
PID 3968 wrote to memory of 4984	3968	995de7c2eab5ffe9ec7130727263b74c_JaffaCakes118.exe	86
PID 3968 wrote to memory of 4796	3968	995de7c2eab5ffe9ec7130727263b74c_JaffaCakes118.exe	90
PID 3968 wrote to memory of 4796	3968	995de7c2eab5ffe9ec7130727263b74c_JaffaCakes118.exe	90
PID 3968 wrote to memory of 4796	3968	995de7c2eab5ffe9ec7130727263b74c_JaffaCakes118.exe	90

C:\Users\Admin\AppData\Local\Temp\995de7c2eab5ffe9ec7130727263b74c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\995de7c2eab5ffe9ec7130727263b74c_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3968
- C:\Users\Admin\AppData\Local\Temp\995de7c2eab5ffe9ec7130727263b74c_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\995de7c2eab5ffe9ec7130727263b74c_JaffaCakes118.exe startC:\Program Files (x86)\LP\F9D0\59B.exe%C:\Program Files (x86)\LP\F9D0
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4984
- C:\Users\Admin\AppData\Local\Temp\995de7c2eab5ffe9ec7130727263b74c_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\995de7c2eab5ffe9ec7130727263b74c_JaffaCakes118.exe startC:\Program Files (x86)\D491A\lvvm.exe%C:\Program Files (x86)\D491A
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4796

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\08FD4\491A.8FD

Filesize
996B

MD5
c904d4e08628424e16d531863aa4e474

SHA1
46121e8c37159ccabdc0f323c34965c5eefaab5d

SHA256
a285fa2e592b6e7fbef7d9870d9cedd772278bab660d0bb1799fb067b368e650

SHA512
f7cee9b75f4f103b52566dca7234b30b7412f4f036a967782f851940abaab9984486ab39b36929ead25375bba2dc9e1009f7e3c6c5adf0e1e877f7b317a00627

Download Submit
C:\Users\Admin\AppData\Roaming\08FD4\491A.8FD

Filesize
600B

MD5
75599fd27fa7eb5b23a5e94d94c014bd

SHA1
db257d45f541e776d1911993a864ee8180f17980

SHA256
f5dd84cc7b126287693010927212e16b1c4c61bce04e6893b6dacf61cbdd1f2a

SHA512
6499e01cc7d633bc8245234063aeec237df80cc7a566df1fa7e388b1ce82fff944997616b94cc50a4ff09dd39d5fa28a9b6ba278986179257c3e49b55dcf7c59

Download Submit
C:\Users\Admin\AppData\Roaming\08FD4\491A.8FD

Filesize
1KB

MD5
49b80e6e6b5b4910c785a93a889207fb

SHA1
a6702e99ef8464c469a8b874f896086aa108823d

SHA256
934e66357d9c89c91d51443ee00f6048e0d3e5c2724b78624c3356da8858e2f1

SHA512
7535af89337b06bc5e844985bd48d8647cba629cf927c02f67ec6ec4eae1e8dbb60461535d4f18320566efb19df39a93564ffe5ffe45172bc261fd1019f61a29

Download Submit
memory/3968-116-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3968-16-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3968-17-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/3968-0-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3968-2-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/3968-3-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3968-290-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4796-115-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4984-15-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4984-14-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads