cycbot | c444be81f9a2675822afd8d3259c85f357947b3d391071ce4f627663f673e542

General

Target

JaffaCakes118_101660b924b7aa18d196bd7b2b592ef7.exe
Size

170KB
MD5

101660b924b7aa18d196bd7b2b592ef7
SHA1

8190d88997c291dc3b5f9638528da24b62eff647
SHA256

c444be81f9a2675822afd8d3259c85f357947b3d391071ce4f627663f673e542
SHA512

b1cd2fdf92146f15bf60428673fbfc7c5def61b9ae2392415c2a03748319e8aa6885dee909e6b5a0829dc358a5ddb285baa723fc98af8b5d0cd23df72c07e3cb
SSDEEP

3072:AqmSLGkYoPrNdGYxfUfcl/W7UdFW6KKusTtrVKpY74CB+yAmt:1GRoPXGYxIcu7Udw6dTtrYpIL+y9

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
behavioral1/memory/2648-12-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/2776-13-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral1/memory/2776-14-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/2288-118-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/2776-119-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/2776-281-0x0000000000400000-0x0000000000491000-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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\35DA9\\AB23D.exe"	JaffaCakes118_101660b924b7aa18d196bd7b2b592ef7.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2776-3-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2648-10-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2648-12-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2776-13-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/2776-14-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2288-118-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2288-116-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2776-119-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2776-281-0x0000000000400000-0x0000000000491000-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_101660b924b7aa18d196bd7b2b592ef7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_101660b924b7aa18d196bd7b2b592ef7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_101660b924b7aa18d196bd7b2b592ef7.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2776 wrote to memory of 2648	2776	JaffaCakes118_101660b924b7aa18d196bd7b2b592ef7.exe	31
PID 2776 wrote to memory of 2648	2776	JaffaCakes118_101660b924b7aa18d196bd7b2b592ef7.exe	31
PID 2776 wrote to memory of 2648	2776	JaffaCakes118_101660b924b7aa18d196bd7b2b592ef7.exe	31
PID 2776 wrote to memory of 2648	2776	JaffaCakes118_101660b924b7aa18d196bd7b2b592ef7.exe	31
PID 2776 wrote to memory of 2288	2776	JaffaCakes118_101660b924b7aa18d196bd7b2b592ef7.exe	32
PID 2776 wrote to memory of 2288	2776	JaffaCakes118_101660b924b7aa18d196bd7b2b592ef7.exe	32
PID 2776 wrote to memory of 2288	2776	JaffaCakes118_101660b924b7aa18d196bd7b2b592ef7.exe	32
PID 2776 wrote to memory of 2288	2776	JaffaCakes118_101660b924b7aa18d196bd7b2b592ef7.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_101660b924b7aa18d196bd7b2b592ef7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_101660b924b7aa18d196bd7b2b592ef7.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2776
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_101660b924b7aa18d196bd7b2b592ef7.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_101660b924b7aa18d196bd7b2b592ef7.exe startC:\Program Files (x86)\LP\3DD3\828.exe%C:\Program Files (x86)\LP\3DD3
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2648
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_101660b924b7aa18d196bd7b2b592ef7.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_101660b924b7aa18d196bd7b2b592ef7.exe startC:\Program Files (x86)\A94AF\lvvm.exe%C:\Program Files (x86)\A94AF
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2288

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\35DA9\94AF.5DA

Filesize
696B

MD5
437dff252d74742aed80ea9216328aa0

SHA1
6eef5fd9bdd47e97276f78434e969bd9503b9b24

SHA256
e5cf1964011a63b031398cd97df2f77b3bfa6c15c495aa0eeb48275b9e0404f3

SHA512
43571f959fe9741b407802fa074492ddc0a8a0a68275a1221fc0ecf492bdec546817c5be9300d3b749bda624ebd333c549d372109bdec9a11866cb002cce1e5c

Download Submit
C:\Users\Admin\AppData\Roaming\35DA9\94AF.5DA

Filesize
300B

MD5
8dc04809bce7926a4521f8a708dbe6d6

SHA1
80ec52abef8dd4bc2f0163f2e5da9655bc5fed91

SHA256
60702c718c9afeb7d2ba39bf24e955ec616d70189824fc3345404207f98c4643

SHA512
76c4b2278f882b17b3c9f12a595d4087de1e5ac9c0690a6335a24b33073ef93e17a287e8c2ada112f00bc424d1d04d794338a3340b666eb4af1eebf77afa10e8

Download Submit
C:\Users\Admin\AppData\Roaming\35DA9\94AF.5DA

Filesize
1KB

MD5
7e818b1f3ac4bc20e5bc1513321de963

SHA1
53e1c825ac5da5d898f0cdbe1adbff532e830aba

SHA256
0a5cdc9a5816cecb78d66283f2d37b173cfa9706dc10ac6ba8d9f48943346374

SHA512
562521ddac2c37a63d29d83d88720447d3004d5a8a56db298e4f944e97c7f8167b0cfd8c1c8151f5a7b6ca60095efc31d803b0cbb52906d1a163f8a3ce03124e

Download Submit
memory/2288-116-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2288-118-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2648-10-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2648-12-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2776-14-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2776-13-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2776-0-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2776-119-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2776-3-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2776-2-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2776-281-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads