cycbot | 247096a0f8ee29d360de5e01a089d2345b820e83bfa9175518128a98dfd0975b

General

Target

JaffaCakes118_588245bdb4ece067ee35dd21b49eb2d4.exe
Size

179KB
MD5

588245bdb4ece067ee35dd21b49eb2d4
SHA1

d2b4f7c9337ce90c2a2170a2e65084d8d01195bf
SHA256

247096a0f8ee29d360de5e01a089d2345b820e83bfa9175518128a98dfd0975b
SHA512

cecbe71a9a41af7f20ccc5f52206ff06474a38164da504975a44489fe71b458bd5d584a97234961b9c1678a18c7e3022e84d78f3798f89723884d5f6f8321d37
SSDEEP

3072:HlvjWfBYXoPw9N6mILzoWHP2k08ANvT2ztGKiuuMlMSifHmML80tsJM/y72fd:Zj5oPw9kzjHP2h8+TYtFOMRifHm95r8

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 5 IoCs

Cycbot is a backdoor and trojan written in C++.

resource	yara_rule
behavioral2/memory/1408-15-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/4152-16-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/4152-82-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/4384-86-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/4152-201-0x0000000000400000-0x0000000000490000-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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\dwm.exe"	JaffaCakes118_588245bdb4ece067ee35dd21b49eb2d4.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4152-2-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/1408-12-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/1408-13-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/1408-15-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4152-16-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4152-82-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4384-86-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4152-201-0x0000000000400000-0x0000000000490000-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_588245bdb4ece067ee35dd21b49eb2d4.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4152 wrote to memory of 1408	4152	JaffaCakes118_588245bdb4ece067ee35dd21b49eb2d4.exe	83
PID 4152 wrote to memory of 1408	4152	JaffaCakes118_588245bdb4ece067ee35dd21b49eb2d4.exe	83
PID 4152 wrote to memory of 1408	4152	JaffaCakes118_588245bdb4ece067ee35dd21b49eb2d4.exe	83
PID 4152 wrote to memory of 4384	4152	JaffaCakes118_588245bdb4ece067ee35dd21b49eb2d4.exe	93
PID 4152 wrote to memory of 4384	4152	JaffaCakes118_588245bdb4ece067ee35dd21b49eb2d4.exe	93
PID 4152 wrote to memory of 4384	4152	JaffaCakes118_588245bdb4ece067ee35dd21b49eb2d4.exe	93

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_588245bdb4ece067ee35dd21b49eb2d4.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_588245bdb4ece067ee35dd21b49eb2d4.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4152
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_588245bdb4ece067ee35dd21b49eb2d4.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_588245bdb4ece067ee35dd21b49eb2d4.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  PID:1408
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_588245bdb4ece067ee35dd21b49eb2d4.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_588245bdb4ece067ee35dd21b49eb2d4.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  PID:4384

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\36BA.9CE

Filesize
1KB

MD5
af6630160c01cd7a2f0b84d10b02218c

SHA1
1b4e555e7208ad7428a63315df1a523ae270398a

SHA256
80fe7c0bdf8be5ffa75d07a3f3f322874fb7bdc78135a7815512d191085663a1

SHA512
86c5f89fd02a48b3d2c2ac1d844d601f0519045dadb18e81bb1150b0be46870ad93536018233559a356dbdb4281088f0f24e79926d231f51f50c1d94eef75781

Download Submit
C:\Users\Admin\AppData\Roaming\36BA.9CE

Filesize
600B

MD5
9e3fd459d1c355fc368825fd792d4aca

SHA1
40ecd0c5bfedcb6ae54c9a15166653095ce66be2

SHA256
6755d0ffca1ef62ddf726cdbff86d4c884616fec6c9c1051a21da8ef0e550f1b

SHA512
4d64a0cc611f3ad0b61c753e850a377704ccf4023c5b889e461409f8d667b82f3b059031354b0a0d5e22fe268e746a23a020a7252f47b3d512a31bb86688f599

Download Submit
C:\Users\Admin\AppData\Roaming\36BA.9CE

Filesize
996B

MD5
eee2bf788814e8d039494a8a19df0453

SHA1
fee3a550658fb446edbc6bb9e96ce3de2433abb7

SHA256
3b65a6ef4719f764d23279dd1cefabde3161399e4fe9443171ddb5a4f70f0c50

SHA512
aefb278b937411ae374976b7a3e95639453fedae1229c372b3cd21ef0bc1feb6093706ae84379b61e033201f90585bcda1c580099b0cf5f7637875d1308660e5

Download Submit
memory/1408-13-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1408-15-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1408-12-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4152-16-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4152-1-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4152-82-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4152-2-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4152-201-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4384-84-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4384-86-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads