cycbot | cf969a744501e16e29c04bafa3a052c3caa7334a24add77bb1570c3de727965f

General

Target

JaffaCakes118_650707800418b6cf533d5c5413d89380.exe
Size

164KB
MD5

650707800418b6cf533d5c5413d89380
SHA1

308fd86caeea50796d144a44fb8f6b5ff4fecfbf
SHA256

cf969a744501e16e29c04bafa3a052c3caa7334a24add77bb1570c3de727965f
SHA512

4a3645fac2d46961abf641c1e77334740feffd7c386ac150589f3f35870ba9e3689624871f0804a73bb3dd1dc466946cce92966c03cf167a6881c968ab244830
SSDEEP

3072:SSfOD2Yuc7YaGuQP6h6SFMr6hhh7MJCsbEvfcp39k5W4Cb4SRRATPWkqpEal:TmqrDaGuQP6UzrCzAJVbE43cW4CbfRv4

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/3996-15-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/1644-16-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/1644-17-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral2/memory/2924-115-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/1644-116-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/1644-290-0x0000000000400000-0x0000000000490000-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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\B7A58\\71DA0.exe"	JaffaCakes118_650707800418b6cf533d5c5413d89380.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1644-3-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/3996-14-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/3996-15-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/1644-16-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/1644-17-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral2/memory/2924-115-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/1644-116-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/1644-290-0x0000000000400000-0x0000000000490000-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_650707800418b6cf533d5c5413d89380.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_650707800418b6cf533d5c5413d89380.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_650707800418b6cf533d5c5413d89380.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1644 wrote to memory of 3996	1644	JaffaCakes118_650707800418b6cf533d5c5413d89380.exe	82
PID 1644 wrote to memory of 3996	1644	JaffaCakes118_650707800418b6cf533d5c5413d89380.exe	82
PID 1644 wrote to memory of 3996	1644	JaffaCakes118_650707800418b6cf533d5c5413d89380.exe	82
PID 1644 wrote to memory of 2924	1644	JaffaCakes118_650707800418b6cf533d5c5413d89380.exe	83
PID 1644 wrote to memory of 2924	1644	JaffaCakes118_650707800418b6cf533d5c5413d89380.exe	83
PID 1644 wrote to memory of 2924	1644	JaffaCakes118_650707800418b6cf533d5c5413d89380.exe	83

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_650707800418b6cf533d5c5413d89380.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_650707800418b6cf533d5c5413d89380.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1644
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_650707800418b6cf533d5c5413d89380.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_650707800418b6cf533d5c5413d89380.exe startC:\Program Files (x86)\LP\A05B\D7E.exe%C:\Program Files (x86)\LP\A05B
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3996
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_650707800418b6cf533d5c5413d89380.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_650707800418b6cf533d5c5413d89380.exe startC:\Program Files (x86)\5893D\lvvm.exe%C:\Program Files (x86)\5893D
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2924

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\B7A58\893D.7A5

Filesize
596B

MD5
5cbdbb9e24eac74f14f67dbad3026258

SHA1
249fabba15d44ca48132d5be9fcd36e98c5d86eb

SHA256
427758b95cca8fd8e224520bc86a275e3b977c566f2b34e0ccf4682cbd9dfa77

SHA512
a27fcf3a064529936b3369d9c863835defda01e20363550f2540a50b56d3e7847274125d4f3c9de0e934b5c90846138d97bcc9b77d4da7ea60ba0acaf1892ecc

Download Submit
C:\Users\Admin\AppData\Roaming\B7A58\893D.7A5

Filesize
996B

MD5
e713260f00441eb32ccac5e8eb6843ae

SHA1
5938d3473b9b7c735c3560455e068ff0ca91ef34

SHA256
9151895bfd64d214d11ca2429e729c34fac320a89003a07ee3a0554945aa5610

SHA512
b6c099dc4054ebb895ebb82f739dafa275b569c43bda26e93b38a5dbfdf925100ba08b09f6927edb951631583d69ac034680dce454eaae696cb7a2313c4ebe16

Download Submit
C:\Users\Admin\AppData\Roaming\B7A58\893D.7A5

Filesize
600B

MD5
28e865287d08f5f1fc884e7a914f3484

SHA1
5b5388db12971750b2eec8006e8114df34a5a84e

SHA256
3c3c7ab4c418ed0cd3fb3acd544eb55ca158a18e11fb0531be999a556823a3ab

SHA512
4ca7b03b1082a396a45963764d11a3df3a620ba91b7f8d62672695fe2a47c6a198f622967893f3b4d97f1fbb890c5bee7c256b4c693af62b755fe97998622dbf

Download Submit
C:\Users\Admin\AppData\Roaming\B7A58\893D.7A5

Filesize
1KB

MD5
df9a36d7add5052911af483bed9edaaf

SHA1
aa70c86c8fb05b029e55e034ab962006b7b174cf

SHA256
fca7411e304e4b2022191daa2ecae8d8d94591984afefdebec0b1edea8e69989

SHA512
c3e9c5ba4f9cd2b3436da97bbc07f560b72e94236c25e6be3cde80e15c2aef7b582fc641c9cf021686b2b785740bd7824147c2a94d234455e5adf26075ecc448

Download Submit
memory/1644-16-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1644-0-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1644-17-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/1644-116-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1644-3-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1644-2-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/1644-290-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2924-115-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3996-15-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3996-14-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads