cycbot | 61417b19c8c86f38cf0eaf1ef7a43c4081aacf748cad8915b0d062171a491551

General

Target

JaffaCakes118_9c150193c7161a51cce3813454cdc281.exe
Size

171KB
MD5

9c150193c7161a51cce3813454cdc281
SHA1

a20a13d1bf0bea85adabf8f7b9d90d4e253b2e15
SHA256

61417b19c8c86f38cf0eaf1ef7a43c4081aacf748cad8915b0d062171a491551
SHA512

d09fe8c7b0458caac97e19033cfb0236de9a2d424afe56f89e27960e5db3fdb102c0c6549624906786c1fced3a12a27d3eb4f8b0fdfeff503ef9317f7bbb9b3f
SSDEEP

3072:tIGV6wDVA7YRAljukwa/+pI0S2otjv4NlVKWLl1x/9dFaO2YXXDgh9WRoU+p:tn5S7cAtukkHStvUlVKW3bD2QXDi9w7y

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
behavioral1/memory/3468-10-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral1/memory/1268-42-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral1/memory/4528-108-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral1/memory/1268-109-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral1/memory/1268-171-0x0000000000400000-0x000000000048D000-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-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\conhost.exe"	JaffaCakes118_9c150193c7161a51cce3813454cdc281.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1268-2-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral1/memory/3468-8-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral1/memory/3468-10-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral1/memory/1268-42-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral1/memory/4528-108-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral1/memory/1268-109-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral1/memory/1268-171-0x0000000000400000-0x000000000048D000-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_9c150193c7161a51cce3813454cdc281.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1268 wrote to memory of 3468	1268	JaffaCakes118_9c150193c7161a51cce3813454cdc281.exe	86
PID 1268 wrote to memory of 3468	1268	JaffaCakes118_9c150193c7161a51cce3813454cdc281.exe	86
PID 1268 wrote to memory of 3468	1268	JaffaCakes118_9c150193c7161a51cce3813454cdc281.exe	86
PID 1268 wrote to memory of 4528	1268	JaffaCakes118_9c150193c7161a51cce3813454cdc281.exe	98
PID 1268 wrote to memory of 4528	1268	JaffaCakes118_9c150193c7161a51cce3813454cdc281.exe	98
PID 1268 wrote to memory of 4528	1268	JaffaCakes118_9c150193c7161a51cce3813454cdc281.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9c150193c7161a51cce3813454cdc281.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9c150193c7161a51cce3813454cdc281.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1268
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9c150193c7161a51cce3813454cdc281.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9c150193c7161a51cce3813454cdc281.exe startC:\Program Files (x86)\Internet Explorer\lvvm.exe%C:\Program Files (x86)\Internet Explorer
  2⤵
  PID:3468
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9c150193c7161a51cce3813454cdc281.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9c150193c7161a51cce3813454cdc281.exe startC:\Users\Admin\AppData\Local\Temp\dwm.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  PID:4528

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\9F57.304

Filesize
996B

MD5
751ff614c62c650f052e31a296f990d4

SHA1
5779d5b9e1b4151dc17fe46879fd19aa2d8d1fd4

SHA256
dc8bd2d29f9a04a7bbab9c2fa92ee2ed998bc5b9f3d79661d66fe9b6fb1abc73

SHA512
7ab63fde27f4051fc14155cf1139fe6d8869bb1aa483e2edc2952221a97ae716b027466ea47fe92fcc60a5a7cff543af1f6ecf318085c672dfaad8349670fca5

Download Submit
C:\Users\Admin\AppData\Roaming\9F57.304

Filesize
600B

MD5
ed4e43c17ba8937a5713332eb87dbc5a

SHA1
2aa9491aefd5ed1d64f08f0f75839dcd412ffaad

SHA256
2f63c6ff744344d62691bb7aad7c6b5a3aacff8ae09164cee56d5a0af1987f22

SHA512
8471372f09df7f7899a71a969edd6427756049d61bb5ba28e4b9bc799e8aa1962c358a9bb2eac18544aa283ff544008d5fc2fe6fc823659e74fbc4ebb3aa6aff

Download Submit
C:\Users\Admin\AppData\Roaming\9F57.304

Filesize
1KB

MD5
29cea14fdeeeceefbf898fabf406a397

SHA1
4269a5e902be01e7c5da02b7b9dbc79a36de5af2

SHA256
224bbdd59a8b18095c84799a3e7485ffc4e53c482615e1edd509a67f403cd1ac

SHA512
3859f46ea861738e216bc63318ffc069b5ffa33e4b32b11007d116b53d8204fc1e5652cd4ac7566b7d015992f8d18347fd02096a497b08985d4d926b10f46c92

Download Submit
memory/1268-1-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/1268-2-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/1268-42-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/1268-109-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/1268-171-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/3468-8-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/3468-10-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/4528-108-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads