cycbot | ab2e7570287a4ec38ad19bfad8991501c5edd58f0582b68a69275270ff6493c1

General

Target

fbd644dbe1203eb4a7a0f0f002f2e421_JaffaCakes118.exe
Size

166KB
MD5

fbd644dbe1203eb4a7a0f0f002f2e421
SHA1

7761777af35b9ac68595eaa9de86deec012e03cc
SHA256

ab2e7570287a4ec38ad19bfad8991501c5edd58f0582b68a69275270ff6493c1
SHA512

79e50f0b91ffebb459f05c1066cc487e9143c7945062e887f80d9636a11d64ad50dd0663261a80aa601ff0c707a55015defa4501a21a2d0d44794da5cfb76d94
SSDEEP

3072:/8bn/Y5Juwre8zMmU/BAQepx2ztPR9FgRkKmKJ8eW:/0nwKC0meAX2tj2DJ8eW

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/4724-14-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/3728-15-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/4536-83-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/3728-84-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/3728-184-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\conhost = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\conhost.exe"	fbd644dbe1203eb4a7a0f0f002f2e421_JaffaCakes118.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3728-1-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4724-11-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4724-12-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4724-14-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/3728-15-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4536-82-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4536-83-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/3728-84-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/3728-184-0x0000000000400000-0x0000000000445000-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	fbd644dbe1203eb4a7a0f0f002f2e421_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fbd644dbe1203eb4a7a0f0f002f2e421_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fbd644dbe1203eb4a7a0f0f002f2e421_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3728 wrote to memory of 4724	3728	fbd644dbe1203eb4a7a0f0f002f2e421_JaffaCakes118.exe	83
PID 3728 wrote to memory of 4724	3728	fbd644dbe1203eb4a7a0f0f002f2e421_JaffaCakes118.exe	83
PID 3728 wrote to memory of 4724	3728	fbd644dbe1203eb4a7a0f0f002f2e421_JaffaCakes118.exe	83
PID 3728 wrote to memory of 4536	3728	fbd644dbe1203eb4a7a0f0f002f2e421_JaffaCakes118.exe	85
PID 3728 wrote to memory of 4536	3728	fbd644dbe1203eb4a7a0f0f002f2e421_JaffaCakes118.exe	85
PID 3728 wrote to memory of 4536	3728	fbd644dbe1203eb4a7a0f0f002f2e421_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\fbd644dbe1203eb4a7a0f0f002f2e421_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fbd644dbe1203eb4a7a0f0f002f2e421_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3728
- C:\Users\Admin\AppData\Local\Temp\fbd644dbe1203eb4a7a0f0f002f2e421_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\fbd644dbe1203eb4a7a0f0f002f2e421_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4724
- C:\Users\Admin\AppData\Local\Temp\fbd644dbe1203eb4a7a0f0f002f2e421_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\fbd644dbe1203eb4a7a0f0f002f2e421_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4536

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

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\7BF2.351

Filesize
600B

MD5
a64f475e24ff8601f646a8c62e85ecd9

SHA1
461a6734619ca99907d620f53eb22048403e6f55

SHA256
a93110ea24789be6db28fba44a3d50bf4bfa601f3639f8393af381dc14d91271

SHA512
91a3393fdefa3d9b85fc4cfb320cb06c44c065501509250f3533aefc4e7faf579f7bc0cc165bc2afadca2cfb8b2ed298a084ba2c7195bb92d9b5a80334e937df

Download Submit
C:\Users\Admin\AppData\Roaming\7BF2.351

Filesize
996B

MD5
d9f66a34bd4c9536cbd76b1b862b006b

SHA1
7c1933e203d44a8a395756b8fabc10c8ae4cd952

SHA256
28059985a43c1bc47008d8c29d7bfdde2a50e4ebf38d94137143383dd7383bf8

SHA512
3a78b311ff7c1825bc8c1a5722424cee722de499b9107156d7ca1597c5fcc0acdb9cbd677818f8868e1502b92bd43e275467d3a108908b04015b4f88ce440494

Download Submit
memory/3728-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3728-15-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3728-84-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3728-184-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4536-81-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4536-82-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4536-83-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4724-11-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4724-12-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4724-14-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads