cycbot | 64b304dfc73f994fa741060a66dc9ce5dceced68d36f604782006de093dab90a

General

Target

JaffaCakes118_5b15d0b8b84ff551f1bfe01ae13185c2.exe
Size

164KB
MD5

5b15d0b8b84ff551f1bfe01ae13185c2
SHA1

218cd8fb0c65059f0cf14c8e49055120c1798835
SHA256

64b304dfc73f994fa741060a66dc9ce5dceced68d36f604782006de093dab90a
SHA512

18c8a1910c67deff9ca6409c3bc4e1c567afe0d6b49d1058efd5e6ef340c4fffd6778454c63c021f092aa2fbed2b41cc84ed47ffd694e67d9fa91e9cb4fd6f1c
SSDEEP

3072:E2mEMBnspASCSUYSjz6oBiVqbEWXv1LLNSg/X6e1e1yqPihEvfB5/Qxq+NMRwczt:ENBspSSUYDoBiUEqHdX6Sexiwv/gq2Mx

Score

10^/10

cycbot backdoor discovery persistence rat spyware stealer 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/2804-16-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/1740-17-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/1740-18-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral1/memory/2296-134-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/1740-135-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/1740-314-0x0000000000400000-0x0000000000490000-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-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\014DA\\82278.exe"	JaffaCakes118_5b15d0b8b84ff551f1bfe01ae13185c2.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1740-4-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2804-14-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2804-16-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/1740-17-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/1740-18-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/2296-134-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/1740-135-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/1740-314-0x0000000000400000-0x0000000000490000-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_5b15d0b8b84ff551f1bfe01ae13185c2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_5b15d0b8b84ff551f1bfe01ae13185c2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_5b15d0b8b84ff551f1bfe01ae13185c2.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1740 wrote to memory of 2804	1740	JaffaCakes118_5b15d0b8b84ff551f1bfe01ae13185c2.exe	30
PID 1740 wrote to memory of 2804	1740	JaffaCakes118_5b15d0b8b84ff551f1bfe01ae13185c2.exe	30
PID 1740 wrote to memory of 2804	1740	JaffaCakes118_5b15d0b8b84ff551f1bfe01ae13185c2.exe	30
PID 1740 wrote to memory of 2804	1740	JaffaCakes118_5b15d0b8b84ff551f1bfe01ae13185c2.exe	30
PID 1740 wrote to memory of 2296	1740	JaffaCakes118_5b15d0b8b84ff551f1bfe01ae13185c2.exe	32
PID 1740 wrote to memory of 2296	1740	JaffaCakes118_5b15d0b8b84ff551f1bfe01ae13185c2.exe	32
PID 1740 wrote to memory of 2296	1740	JaffaCakes118_5b15d0b8b84ff551f1bfe01ae13185c2.exe	32
PID 1740 wrote to memory of 2296	1740	JaffaCakes118_5b15d0b8b84ff551f1bfe01ae13185c2.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5b15d0b8b84ff551f1bfe01ae13185c2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5b15d0b8b84ff551f1bfe01ae13185c2.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1740
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5b15d0b8b84ff551f1bfe01ae13185c2.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5b15d0b8b84ff551f1bfe01ae13185c2.exe startC:\Program Files (x86)\LP\7810\302.exe%C:\Program Files (x86)\LP\7810
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2804
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5b15d0b8b84ff551f1bfe01ae13185c2.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5b15d0b8b84ff551f1bfe01ae13185c2.exe startC:\Program Files (x86)\DA295\lvvm.exe%C:\Program Files (x86)\DA295
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2296

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

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\014DA\A295.14D

Filesize
996B

MD5
0b6a9ecc3b8b1f2f9fe06bfb49230e00

SHA1
d39eced7cf1734e1d11009679261e664bf2be1d3

SHA256
2d9542ff96be7a01b23e2408f79a3aaea52a74a12f3cfb875b363ac5ef6294b3

SHA512
76e4ebe4bd439475f302de79964ff62bf6341edc50a9af60cd9d2dfafeea8f33f0d0b13fb28da846b4646101900afcce6e91baceee87e57276ab00a32f27cd66

Download Submit
C:\Users\Admin\AppData\Roaming\014DA\A295.14D

Filesize
600B

MD5
75b02946519b95f3eaa666396461c34e

SHA1
a9d83024c756b4f78380df48bcdaca25b5fb5d55

SHA256
83b21a66fd3b87ffca21c1d2284621db38acf7eb413ab90cc4eec023a823627d

SHA512
832e2942c227f455544d29c5714b6d581989f486bc18a8b12828dd53d6e824b297cdecda567959eeaf8147d23102a605350eaea245a11f425e369fd2bf0f4b86

Download Submit
C:\Users\Admin\AppData\Roaming\014DA\A295.14D

Filesize
1KB

MD5
8813085955c4ed17643b157fbf9e7059

SHA1
7a212e243bb3e455a3ccc47a503f0bd48ce9bb28

SHA256
6bf820983a714b9bcfab5723c99a23d2a97ed3a9b865b7ed42ead9574bd3b4c1

SHA512
519adc716c9d5673b1bd7928c8cc918b1f5cac4d711af261ddddd11ff6d6142eb999fbc2ddd5b60943067f018da706a12095328c0141b72168274bcb92e1f810

Download Submit
memory/1740-135-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1740-2-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/1740-4-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1740-314-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1740-17-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1740-18-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/1740-0-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2296-132-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2296-134-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2296-251-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2804-16-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2804-14-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads