cycbot | 05961272f57f967605d9ef765d46dd0d583da1e64b36984b7901b1e4d3b85c93

General

Target

JaffaCakes118_6cf249e7391115ab5e47419bfd640e7f.exe
Size

176KB
MD5

6cf249e7391115ab5e47419bfd640e7f
SHA1

bc57fc7914fc4911c2c78b4bbea1ae4f07c6e296
SHA256

05961272f57f967605d9ef765d46dd0d583da1e64b36984b7901b1e4d3b85c93
SHA512

73a9f662f736410e54cd6a6c8566b88fe59dcd6fc0a1f55edf47137499f9fe6f980317a6cc0e926fdbe4430554bf5c244efca9e5b13d2c8368308cb39c7e1ff8
SSDEEP

3072:I62/a+CB/Og9XEBH0EkHLE7CtVTeJ8Kn6Nyt4ibYnC95OUckrXbd259l7eEhWW:z2i+A/HmHFuw6g8K6Qt46Ln11p2v4Eo

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 6 IoCs

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

resource	yara_rule
behavioral2/memory/3732-14-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/3876-15-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/3876-16-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral2/memory/1324-139-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/3876-140-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/3876-302-0x0000000000400000-0x0000000000491000-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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\29E6F\\5E6C2.exe"	JaffaCakes118_6cf249e7391115ab5e47419bfd640e7f.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3876-2-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/3732-13-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/3732-14-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/3876-15-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/3876-16-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral2/memory/1324-137-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/1324-139-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/3876-140-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/3876-302-0x0000000000400000-0x0000000000491000-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_6cf249e7391115ab5e47419bfd640e7f.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3876 wrote to memory of 3732	3876	JaffaCakes118_6cf249e7391115ab5e47419bfd640e7f.exe	82
PID 3876 wrote to memory of 3732	3876	JaffaCakes118_6cf249e7391115ab5e47419bfd640e7f.exe	82
PID 3876 wrote to memory of 3732	3876	JaffaCakes118_6cf249e7391115ab5e47419bfd640e7f.exe	82
PID 3876 wrote to memory of 1324	3876	JaffaCakes118_6cf249e7391115ab5e47419bfd640e7f.exe	83
PID 3876 wrote to memory of 1324	3876	JaffaCakes118_6cf249e7391115ab5e47419bfd640e7f.exe	83
PID 3876 wrote to memory of 1324	3876	JaffaCakes118_6cf249e7391115ab5e47419bfd640e7f.exe	83

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6cf249e7391115ab5e47419bfd640e7f.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6cf249e7391115ab5e47419bfd640e7f.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3876
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6cf249e7391115ab5e47419bfd640e7f.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6cf249e7391115ab5e47419bfd640e7f.exe startC:\Program Files (x86)\LP\C2E2\D78.exe%C:\Program Files (x86)\LP\C2E2
  2⤵
  PID:3732
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6cf249e7391115ab5e47419bfd640e7f.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6cf249e7391115ab5e47419bfd640e7f.exe startC:\Program Files (x86)\6FC07\lvvm.exe%C:\Program Files (x86)\6FC07
  2⤵
  PID:1324

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\29E6F\FC07.9E6

Filesize
996B

MD5
518e3e3975627b106bec858ac23281e0

SHA1
927b92061bab3e6e2008f9d022ba4b4f30b44ed3

SHA256
b9fb839b5be8930dce676fb2c673c0a79a64aed2041950dadaf9ac70078d65c2

SHA512
f8fe712282c9fb4dc64a785674c070bacb7feaa3cfa1c330711405d365db5acf42f816a44708a79243c0689b1e91dc74e2b758d4af808aa6422a66a517a7efe0

Download Submit
C:\Users\Admin\AppData\Roaming\29E6F\FC07.9E6

Filesize
600B

MD5
0d011cd9cb5ddb76f62ceaff364b2f2c

SHA1
6bbf8391f6366a3226a2d197e87231af866a6454

SHA256
54e6800bdb9cd4b0c96b7135bc8b4be7dc697b5d4e46d84336f3093f82d5e632

SHA512
ac362ff164fbf571867070d44ca555952b8139a54e15d139f841b92a7023fff34c204e9636f2778ed9fc1021de11a99a7969f1878d3c8b3b7d24c14fa5842246

Download Submit
C:\Users\Admin\AppData\Roaming\29E6F\FC07.9E6

Filesize
1KB

MD5
abf68769328237f769c4a950231b88b7

SHA1
8a31fd48c678c2faf5f7e2fa2e2cc113720ad92d

SHA256
1e9fdf891c394bb6c199dbb42a0f82ef8b95269877402aa4805dabfed37e31ad

SHA512
33003cea005af3abe8a70da47bc6284f37962227982426e6b7f5386744826455702a3d086565ba7b4cf536221dcc636e1c3cccb5694649540d5efde1c91fd409

Download Submit
memory/1324-139-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/1324-137-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3732-12-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3732-14-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3732-13-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3876-16-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/3876-15-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3876-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/3876-140-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3876-2-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3876-302-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads