cycbot | 2b202ef18edb1d72af5edaa644f18dc84e51e6947c03d966d0d9c22d4310eed3

General

Target

JaffaCakes118_bba1b455fca21de2e8cdef1e7dcfbf82.exe
Size

173KB
MD5

bba1b455fca21de2e8cdef1e7dcfbf82
SHA1

2915600ad44bbcf6289ed49fd345f97bb78f235b
SHA256

2b202ef18edb1d72af5edaa644f18dc84e51e6947c03d966d0d9c22d4310eed3
SHA512

5ea0e8b39510ad57e134bb957c409550ea8159694a6c621ab601a3bb57fc8ecad0eeb48f0e10a359c00ef0929ca4d9995dd459e4229db9bacbe6f7a622b8d741
SSDEEP

3072:dyaq7sGql0/RTw2R68dm6E9MJl1f9ylp2NWzj+sjdL77dZCwt:h9GqaJTBdmF9MJlV4iWzjLdn7

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/3988-13-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/2716-14-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/2716-15-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral2/memory/3708-120-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/2716-121-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/2716-295-0x0000000000400000-0x0000000000491000-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\\D8F9C\\F0D14.exe"	JaffaCakes118_bba1b455fca21de2e8cdef1e7dcfbf82.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2716-2-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/3988-13-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2716-14-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2716-15-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral2/memory/3708-120-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2716-121-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2716-295-0x0000000000400000-0x0000000000491000-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	JaffaCakes118_bba1b455fca21de2e8cdef1e7dcfbf82.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_bba1b455fca21de2e8cdef1e7dcfbf82.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_bba1b455fca21de2e8cdef1e7dcfbf82.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2716 wrote to memory of 3988	2716	JaffaCakes118_bba1b455fca21de2e8cdef1e7dcfbf82.exe	83
PID 2716 wrote to memory of 3988	2716	JaffaCakes118_bba1b455fca21de2e8cdef1e7dcfbf82.exe	83
PID 2716 wrote to memory of 3988	2716	JaffaCakes118_bba1b455fca21de2e8cdef1e7dcfbf82.exe	83
PID 2716 wrote to memory of 3708	2716	JaffaCakes118_bba1b455fca21de2e8cdef1e7dcfbf82.exe	88
PID 2716 wrote to memory of 3708	2716	JaffaCakes118_bba1b455fca21de2e8cdef1e7dcfbf82.exe	88
PID 2716 wrote to memory of 3708	2716	JaffaCakes118_bba1b455fca21de2e8cdef1e7dcfbf82.exe	88

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bba1b455fca21de2e8cdef1e7dcfbf82.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bba1b455fca21de2e8cdef1e7dcfbf82.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2716
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bba1b455fca21de2e8cdef1e7dcfbf82.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bba1b455fca21de2e8cdef1e7dcfbf82.exe startC:\Program Files (x86)\LP\14ED\E87.exe%C:\Program Files (x86)\LP\14ED
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3988
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bba1b455fca21de2e8cdef1e7dcfbf82.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bba1b455fca21de2e8cdef1e7dcfbf82.exe startC:\Program Files (x86)\9CAC2\lvvm.exe%C:\Program Files (x86)\9CAC2
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3708

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\D8F9C\CAC2.8F9

Filesize
996B

MD5
67eed8b960be840b01b29f5eded8f5bf

SHA1
dcc2725aedc0c0b8fcb1a43b8cff7687353a3c66

SHA256
3c7d5e949eb367bbb938d53be18b10d7cb33a66558a394a29149c62bcb9293c2

SHA512
f7d4b31fe16f08a8290bfe5a94d93d8f4a017681ec437ca16a634ad0df48b3fbe439900ca0474fcc1421100a48933bd73213ae240462e3493557d1549e261c53

Download Submit
C:\Users\Admin\AppData\Roaming\D8F9C\CAC2.8F9

Filesize
1KB

MD5
07aeb67753506e231680670dd666937c

SHA1
e6ec3a2fc73c01008f804f0c4c6f8f0aa0d26ff5

SHA256
799cca3ddd58dd288ca0fde8892dfbb8f18fef689c96af943f374782c6edde1f

SHA512
4ec7c7914586d554f700543117c895957d059213c2ee9202c3c3a3849fdc6a6e8f929fc9516b7b73dfbc73768a1d7eb21425f8e39e70a4a3c13ce5fd9b42e2ba

Download Submit
C:\Users\Admin\AppData\Roaming\D8F9C\CAC2.8F9

Filesize
600B

MD5
a92f1c4b7a04597dd2ba35ecfa9687b6

SHA1
eb91c7f29b5647b137288deb6399f4f75536e024

SHA256
e6469cbb5fc836ce56a8e24485b9430a6363a41c218308bfdacc364a65491f25

SHA512
9c4a5a9a88c448bd4177d7b4590adc6841af8830c77e0f0ea2ec8a8e0de9b0e89abd6d693828bdf2d717557d006998029cc2f71b6c1973ca6fa298387688bd1c

Download Submit
memory/2716-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2716-2-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2716-14-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2716-15-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2716-121-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2716-295-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3708-120-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3988-12-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3988-13-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads