cycbot | baba2262b26c15f399942f3fc41b49a5fcf52ef04d4bae1b24ee2a648da0ba36

General

Target

c3a6d12d0ed894ed00cf1cd8e62fe4a1_JaffaCakes118.exe
Size

175KB
MD5

c3a6d12d0ed894ed00cf1cd8e62fe4a1
SHA1

5d3d1bf3a2104a4b84db1bcc33d193deb6ebb56b
SHA256

baba2262b26c15f399942f3fc41b49a5fcf52ef04d4bae1b24ee2a648da0ba36
SHA512

abe02732dedf3f364f34c87eabf19c1390adfe18c1372d99c76e652275afa7aab16023037f20569018c6c3c9e90527f303113a13d33d377130060562ad40b9c0
SSDEEP

3072:9AS6vxbxDyR/GG9eqVmy1ADj8Brj0kU631156yrEc2T6:kVyROGtZAv8Brj0uocO

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 7 IoCs

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

resource	yara_rule
behavioral1/memory/2084-3-0x0000000000400000-0x000000000048A000-memory.dmp	family_cycbot
behavioral1/memory/2784-5-0x0000000000400000-0x000000000048A000-memory.dmp	family_cycbot
behavioral1/memory/2084-15-0x0000000000400000-0x000000000048A000-memory.dmp	family_cycbot
behavioral1/memory/2784-16-0x0000000000400000-0x000000000048A000-memory.dmp	family_cycbot
behavioral1/memory/2084-73-0x0000000000400000-0x000000000048A000-memory.dmp	family_cycbot
behavioral1/memory/2884-76-0x0000000000400000-0x000000000048A000-memory.dmp	family_cycbot
behavioral1/memory/2084-184-0x0000000000400000-0x000000000048A000-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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\dwm.exe"	c3a6d12d0ed894ed00cf1cd8e62fe4a1_JaffaCakes118.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 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2084-3-0x0000000000400000-0x000000000048A000-memory.dmp	upx
behavioral1/memory/2784-6-0x0000000000400000-0x000000000048A000-memory.dmp	upx
behavioral1/memory/2784-5-0x0000000000400000-0x000000000048A000-memory.dmp	upx
behavioral1/memory/2084-15-0x0000000000400000-0x000000000048A000-memory.dmp	upx
behavioral1/memory/2784-16-0x0000000000400000-0x000000000048A000-memory.dmp	upx
behavioral1/memory/2084-73-0x0000000000400000-0x000000000048A000-memory.dmp	upx
behavioral1/memory/2884-75-0x0000000000400000-0x000000000048A000-memory.dmp	upx
behavioral1/memory/2884-76-0x0000000000400000-0x000000000048A000-memory.dmp	upx
behavioral1/memory/2084-184-0x0000000000400000-0x000000000048A000-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	c3a6d12d0ed894ed00cf1cd8e62fe4a1_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c3a6d12d0ed894ed00cf1cd8e62fe4a1_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c3a6d12d0ed894ed00cf1cd8e62fe4a1_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2084 wrote to memory of 2784	2084	c3a6d12d0ed894ed00cf1cd8e62fe4a1_JaffaCakes118.exe	31
PID 2084 wrote to memory of 2784	2084	c3a6d12d0ed894ed00cf1cd8e62fe4a1_JaffaCakes118.exe	31
PID 2084 wrote to memory of 2784	2084	c3a6d12d0ed894ed00cf1cd8e62fe4a1_JaffaCakes118.exe	31
PID 2084 wrote to memory of 2784	2084	c3a6d12d0ed894ed00cf1cd8e62fe4a1_JaffaCakes118.exe	31
PID 2084 wrote to memory of 2884	2084	c3a6d12d0ed894ed00cf1cd8e62fe4a1_JaffaCakes118.exe	33
PID 2084 wrote to memory of 2884	2084	c3a6d12d0ed894ed00cf1cd8e62fe4a1_JaffaCakes118.exe	33
PID 2084 wrote to memory of 2884	2084	c3a6d12d0ed894ed00cf1cd8e62fe4a1_JaffaCakes118.exe	33
PID 2084 wrote to memory of 2884	2084	c3a6d12d0ed894ed00cf1cd8e62fe4a1_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\c3a6d12d0ed894ed00cf1cd8e62fe4a1_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c3a6d12d0ed894ed00cf1cd8e62fe4a1_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2084
- C:\Users\Admin\AppData\Local\Temp\c3a6d12d0ed894ed00cf1cd8e62fe4a1_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\c3a6d12d0ed894ed00cf1cd8e62fe4a1_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2784
- C:\Users\Admin\AppData\Local\Temp\c3a6d12d0ed894ed00cf1cd8e62fe4a1_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\c3a6d12d0ed894ed00cf1cd8e62fe4a1_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2884

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\D24A.05F

Filesize
1KB

MD5
02c052df3e442a49f0adfb0fcaa3f112

SHA1
608cab0733e7514867620742e15f1fd1d667dec9

SHA256
57e60534fc584e16067f74fd313653fb07af74788d6c1a2e01a45632cb198ff8

SHA512
c88a9084b19cf4c9a983c9d99f6aa9a822a9958fbeac3b4bd330af2d625d284e3090e636cc49559b888cd6868771a55a35f3b894c497cfc61e2c3f38b8109e40

Download Submit
C:\Users\Admin\AppData\Roaming\D24A.05F

Filesize
600B

MD5
120a644ea7459b46ce08c16e4a7973c7

SHA1
e85738c28dcfe1685c2cd89c34620142c6fa72a9

SHA256
7a87d69d7eaa6f73bc615b2cb8128826aab52301fc78e6b21dec5e6cc684ed77

SHA512
afc6afb719b1bf40e40977c51980f72232ecad76c3312453563ec13f66e6461b7581d6d0903e2088751d79e99be067a4c983343f65304a165c437b9151e60307

Download Submit
C:\Users\Admin\AppData\Roaming\D24A.05F

Filesize
996B

MD5
3e3ca77acae98c7a59273045ac5396a8

SHA1
484774f3d612582b68186fff8a6078874ebff602

SHA256
86c284d32c99ed143fab68b1d3b887138076da9a052cc7c3c462b3ead6bc1c96

SHA512
48c4ee36d95683e5941683f51ebbb28b4995ccb5ddd95ef1d1fa43094bc626105f0c3d5dddb9a171e69f8765a8f5f09162f76f959d685dfd1d8be492d19b6694

Download Submit
memory/2084-73-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download
memory/2084-3-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download
memory/2084-184-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download
memory/2084-15-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download
memory/2084-1-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download
memory/2784-16-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download
memory/2784-5-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download
memory/2784-7-0x0000000000688000-0x00000000006A4000-memory.dmp

Filesize
112KB

Download
memory/2784-6-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download
memory/2884-75-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download
memory/2884-76-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads