cycbot | 1d6ffa1e76aaa12880cf4f35a5ec80234497d75337734635adcf811e2b40fc48

General

Target

JaffaCakes118_afda4e86aec193264031054ce220a488.exe
Size

164KB
MD5

afda4e86aec193264031054ce220a488
SHA1

e509b45d8262cfc6e2d636c41db4ac02ba85054f
SHA256

1d6ffa1e76aaa12880cf4f35a5ec80234497d75337734635adcf811e2b40fc48
SHA512

e5d9bce8514d28e9fad7ec56cd357d6cf2de177ad60d4445a11f5e6b6c18476cf4685dc5086c3133f608127d1d3bdcff4367b7fff3c4cb5aab954bf3b12c3205
SSDEEP

3072:FdJc5HBhuz3BQgObFi4L2rcbqGJwEm1HxU37RcmOg87F5XG3O65bzwT:HJnbBQg2MrjGJwErVfOg8J5XeP53wT

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 7 IoCs

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

resource	yara_rule
behavioral2/memory/3000-15-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/4952-16-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/4952-17-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral2/memory/3004-144-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/4952-145-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/4952-241-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/4952-304-0x0000000000400000-0x0000000000490000-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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\7D723\\77105.exe"	JaffaCakes118_afda4e86aec193264031054ce220a488.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4952-3-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/3000-14-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/3000-15-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4952-16-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4952-17-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral2/memory/3004-143-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/3004-144-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4952-145-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4952-241-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4952-304-0x0000000000400000-0x0000000000490000-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_afda4e86aec193264031054ce220a488.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4952 wrote to memory of 3000	4952	JaffaCakes118_afda4e86aec193264031054ce220a488.exe	82
PID 4952 wrote to memory of 3000	4952	JaffaCakes118_afda4e86aec193264031054ce220a488.exe	82
PID 4952 wrote to memory of 3000	4952	JaffaCakes118_afda4e86aec193264031054ce220a488.exe	82
PID 4952 wrote to memory of 3004	4952	JaffaCakes118_afda4e86aec193264031054ce220a488.exe	83
PID 4952 wrote to memory of 3004	4952	JaffaCakes118_afda4e86aec193264031054ce220a488.exe	83
PID 4952 wrote to memory of 3004	4952	JaffaCakes118_afda4e86aec193264031054ce220a488.exe	83

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_afda4e86aec193264031054ce220a488.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_afda4e86aec193264031054ce220a488.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4952
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_afda4e86aec193264031054ce220a488.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_afda4e86aec193264031054ce220a488.exe startC:\Program Files (x86)\LP\0597\000.exe%C:\Program Files (x86)\LP\0597
  2⤵
  PID:3000
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_afda4e86aec193264031054ce220a488.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_afda4e86aec193264031054ce220a488.exe startC:\Program Files (x86)\23BDA\lvvm.exe%C:\Program Files (x86)\23BDA
  2⤵
  PID:3004

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\7D723\3BDA.D72

Filesize
996B

MD5
7c89f644e59ef0eb57840450d4b6d828

SHA1
89ce8f94ed487623a7a037fe288947461fa979e8

SHA256
5f6004304a2349682bd34dc236ddc1be744be68e906d91eefca8e8d3bc82f4f5

SHA512
002076488cedad67e13e6c034990a78dc40f0e899d5c69efd221f4ddb95dffcafa42514f49ac061ab824fe7b99f6894cd8979dbd587202799ac8dc53e55c50c2

Download Submit
C:\Users\Admin\AppData\Roaming\7D723\3BDA.D72

Filesize
600B

MD5
4d3b9c4d4aaf04354efef7a168312677

SHA1
77590cc1ba2c28cae809bd03d683bb880656213a

SHA256
0282acc7d847a7352319f0056003876b982343b4b95646b03162e39f21550f35

SHA512
d9aafe1c122867cfb8eb649f0b8d39f1a9e9bd119d8ea27c6b27c2829842054e02f94dc9699cec29eca3156dd9a26b436ae08f6d117b097e177a5c8e86440e84

Download Submit
C:\Users\Admin\AppData\Roaming\7D723\3BDA.D72

Filesize
1KB

MD5
199781c3f0cb5ca369e432c60164f04e

SHA1
168c55724666743a02d01ed685a782893cfafaf6

SHA256
8490416f181ff1729d771ffa4bcb17db75b1ae62cf80afe556f0c17ac994638c

SHA512
a655ad33ad88629e92e9a6c0de9a86ad8889e1879543fe0866f03129cb47598fa184dea4e6f2079220f972b3aff5aaca297e1ef4f07e4ddd7afa366912613765

Download Submit
memory/3000-14-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3000-15-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3004-144-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3004-143-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4952-17-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/4952-16-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4952-0-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4952-145-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4952-3-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4952-2-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/4952-241-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4952-304-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads