cycbot | 1150039148fb937a29d6bb7124163316af05121698c371ee484830365fa2a5f2

General

Target

JaffaCakes118_7892fac82ab62b2b006373ff7db24c40.exe
Size

174KB
MD5

7892fac82ab62b2b006373ff7db24c40
SHA1

8c5a0b0506d6dcf9b3ab5fb6822f217167365079
SHA256

1150039148fb937a29d6bb7124163316af05121698c371ee484830365fa2a5f2
SHA512

e882b2b39f5c9a4c3a31081235bbe1f3375b14b91a98ed369ee4845c411163140e3e2906add14946a05e2eac1d7d7ba9e00fcc228781b7d36fc3314c1d0e7f03
SSDEEP

3072:8pRtjHU0Kgvu3BPbBniNxZYotlCSo9TyhW4ViLFWbVs5BJhUcge:SzHU0KgvSBPkaTnFWbVqzhUcT

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/3520-13-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/3348-14-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral2/memory/3348-15-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/3348-70-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/1816-73-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/3348-178-0x0000000000400000-0x0000000000491000-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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\B816C\\FDED3.exe"	JaffaCakes118_7892fac82ab62b2b006373ff7db24c40.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3348-2-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/3520-12-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/3520-13-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/3348-14-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral2/memory/3348-15-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/3348-70-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/1816-73-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/3348-178-0x0000000000400000-0x0000000000491000-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_7892fac82ab62b2b006373ff7db24c40.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3348 wrote to memory of 3520	3348	JaffaCakes118_7892fac82ab62b2b006373ff7db24c40.exe	82
PID 3348 wrote to memory of 3520	3348	JaffaCakes118_7892fac82ab62b2b006373ff7db24c40.exe	82
PID 3348 wrote to memory of 3520	3348	JaffaCakes118_7892fac82ab62b2b006373ff7db24c40.exe	82
PID 3348 wrote to memory of 1816	3348	JaffaCakes118_7892fac82ab62b2b006373ff7db24c40.exe	88
PID 3348 wrote to memory of 1816	3348	JaffaCakes118_7892fac82ab62b2b006373ff7db24c40.exe	88
PID 3348 wrote to memory of 1816	3348	JaffaCakes118_7892fac82ab62b2b006373ff7db24c40.exe	88

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7892fac82ab62b2b006373ff7db24c40.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7892fac82ab62b2b006373ff7db24c40.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3348
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7892fac82ab62b2b006373ff7db24c40.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7892fac82ab62b2b006373ff7db24c40.exe startC:\Program Files (x86)\LP\D3AB\47A.exe%C:\Program Files (x86)\LP\D3AB
  2⤵
  PID:3520
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7892fac82ab62b2b006373ff7db24c40.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7892fac82ab62b2b006373ff7db24c40.exe startC:\Program Files (x86)\6C871\lvvm.exe%C:\Program Files (x86)\6C871
  2⤵
  PID:1816

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\B816C\C871.816

Filesize
1KB

MD5
62ead4ed17b4f9df551193c1b65eda40

SHA1
f6dfec8a7b81b9b3f3aac419fc204e07c445318f

SHA256
563f64a9f37047430dc616fa6e46e9b4753a699f60a03658086af84fa5f3e576

SHA512
2c85595e99a342774b1ff172c5b839c425c7ca2b93b450f0d18896519de34115a30856c772db7221235a214375d59bdb261e8f6f7409a8e6a0499309dfb88811

Download Submit
C:\Users\Admin\AppData\Roaming\B816C\C871.816

Filesize
600B

MD5
a4e7e64deb98fb4933683057683dc40c

SHA1
2973d7caa1e5aaa4b1567563d716cc13f5983bd0

SHA256
cdd314cc6bde7266cf6d6ba47d1b79b745b5eb012230c28a9d2df4a28e8c9db9

SHA512
c251c6dd471c87f65580526fb100ec4b1e80bf8a14595b17a255cbfd2cdfde9005d05072b0c186d82420c316287ed34cb038b6c82abc30a38dad2e24627541fe

Download Submit
C:\Users\Admin\AppData\Roaming\B816C\C871.816

Filesize
996B

MD5
c6e0b8c0104155fe54a7adc47b4b849f

SHA1
cfcbf28dd34c6c1fd3bba1dd70d3709b378817e3

SHA256
de935346506a664b0a79812a9b6f9a81d16755b83d66608448c47a8818acf23e

SHA512
60c3b26d1c107c0dca5ef7a308f2cae1af5ce28a9822b9fb598ad33d35ec0ee56201383ff81e9a771499ffb5cfd2efd0ed89a15d741717f5beb061c6a1c2a676

Download Submit
memory/1816-73-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/1816-72-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3348-14-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/3348-15-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3348-70-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3348-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/3348-2-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3348-178-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3520-13-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3520-12-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads