cycbot | 7286f56b607b60fbaf5ad8d1e6809425646c639e417e91fa3fc1930cfe12efd8

General

Target

JaffaCakes118_570c4f83de6b15683d8bcc40565a7e9a.exe
Size

173KB
MD5

570c4f83de6b15683d8bcc40565a7e9a
SHA1

e4bc20440392cf90dd51d6e949baf753e886ab08
SHA256

7286f56b607b60fbaf5ad8d1e6809425646c639e417e91fa3fc1930cfe12efd8
SHA512

89d3e1535d0606cb1f76499d3c38a90c33485c5db676e2c23b8a13ee160b2da3e23baed01dc205b17cf811e8404f83aced9f3d48b3dcf4869c665062d27d39b2
SSDEEP

3072:OuTCZs9t9TIcRILdMRdMlS/zVSigDJ34j9EmEu3J1o2Xcf6:OsCa9PIcRsMRdOS7QiU4JBJFN

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/1708-14-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/2464-15-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/2464-16-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral2/memory/2324-87-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/2464-88-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/2464-188-0x0000000000400000-0x0000000000491000-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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\C0FBF\\C41F9.exe"	JaffaCakes118_570c4f83de6b15683d8bcc40565a7e9a.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2464-2-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/1708-12-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/1708-14-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2464-15-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2464-16-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral2/memory/2324-85-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2324-87-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2464-88-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2464-188-0x0000000000400000-0x0000000000491000-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_570c4f83de6b15683d8bcc40565a7e9a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_570c4f83de6b15683d8bcc40565a7e9a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_570c4f83de6b15683d8bcc40565a7e9a.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2464 wrote to memory of 1708	2464	JaffaCakes118_570c4f83de6b15683d8bcc40565a7e9a.exe	84
PID 2464 wrote to memory of 1708	2464	JaffaCakes118_570c4f83de6b15683d8bcc40565a7e9a.exe	84
PID 2464 wrote to memory of 1708	2464	JaffaCakes118_570c4f83de6b15683d8bcc40565a7e9a.exe	84
PID 2464 wrote to memory of 2324	2464	JaffaCakes118_570c4f83de6b15683d8bcc40565a7e9a.exe	99
PID 2464 wrote to memory of 2324	2464	JaffaCakes118_570c4f83de6b15683d8bcc40565a7e9a.exe	99
PID 2464 wrote to memory of 2324	2464	JaffaCakes118_570c4f83de6b15683d8bcc40565a7e9a.exe	99

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_570c4f83de6b15683d8bcc40565a7e9a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_570c4f83de6b15683d8bcc40565a7e9a.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2464
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_570c4f83de6b15683d8bcc40565a7e9a.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_570c4f83de6b15683d8bcc40565a7e9a.exe startC:\Program Files (x86)\LP\F9DC\59B.exe%C:\Program Files (x86)\LP\F9DC
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1708
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_570c4f83de6b15683d8bcc40565a7e9a.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_570c4f83de6b15683d8bcc40565a7e9a.exe startC:\Program Files (x86)\BFCD6\lvvm.exe%C:\Program Files (x86)\BFCD6
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2324

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\C0FBF\FCD6.0FB

Filesize
1KB

MD5
747c250f3cc0bdea05e9e520c8a8faa4

SHA1
bd17ca865e1c6479554fb866876c76c067db3b4b

SHA256
b6000542e6d29b0ffe7457b90dbe3167c013d37d67aefb1b4318cb5d9382c227

SHA512
238b52ea0ecacd6a524fa2bcc9f9b94193a94c58b672633f90998e79d9b0170a9c667e870a080f1a81b4613c5bea6eb9975c059a304fc684dc8a39dfc1136845

Download Submit
C:\Users\Admin\AppData\Roaming\C0FBF\FCD6.0FB

Filesize
600B

MD5
3cd59fb8de1944d52266e65c0c9da96f

SHA1
4c1f4aabaf525ab79cd287eea3788f89d18be46a

SHA256
0e4f45b014d8f0dfaacc1ed6f20e53c6ccf607813de534addf74a786b35eb658

SHA512
091fc529e787884fe6c39c19877f5bd907cd19773f43fef40f33383ca05e56c630ffbc13cc5c47a11ad1b89022da869f44072c85e39ff61a768c2b44e3b73fe3

Download Submit
C:\Users\Admin\AppData\Roaming\C0FBF\FCD6.0FB

Filesize
996B

MD5
7905a03a6c06ccd29ff7846a0ab43ee6

SHA1
7d740bb82b59921638f5264599de7fc227fa7dae

SHA256
1bd2a63c95acdc8bcbef2c7917f86268ec4c68f7b422f2a1d96c51b43e5c9076

SHA512
a08272f6e121f9d147338c75ff84535fbb932053130c7fe11c42d4938610e572ab06e74a49b2db76310e291e6fe2e6910cd12c11c37b3d4359d58e5d75bae3a2

Download Submit
memory/1708-14-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/1708-12-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2324-85-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2324-87-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2464-15-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2464-16-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2464-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2464-88-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2464-2-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2464-188-0x0000000000400000-0x0000000000491000-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