cycbot | 99a87e97639663f4fbc9d92aa505a16410b3eff11c594658c6716907a283f21a

General

Target

e892ab03ade3ed2e60ac6a42ebff863d_JaffaCakes118.exe
Size

165KB
MD5

e892ab03ade3ed2e60ac6a42ebff863d
SHA1

9222c2a015a96c35e58a781b27e5a01c9ec9c4c8
SHA256

99a87e97639663f4fbc9d92aa505a16410b3eff11c594658c6716907a283f21a
SHA512

43ef37865529b039134583744f032b92f2e17652c900032fe35fb460edffa00c69273c2518173509830fe5f9bc60c1048d2fa9660839986fb237b201c79d7eb6
SSDEEP

3072:mdIhB/iDjld0dsvDnuxluIIkWj/eoOtqysPiIFov2eKACXqoRr0CQ/33DTB/S:mdi6fld0dGUTPWKqycNq2esXqSr0rF

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/4420-15-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/4544-16-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/4544-17-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral2/memory/3128-121-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/4544-122-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/4544-276-0x0000000000400000-0x0000000000491000-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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\2B8F7\\DD159.exe"	e892ab03ade3ed2e60ac6a42ebff863d_JaffaCakes118.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4544-3-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4420-14-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4420-15-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4544-16-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4544-17-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral2/memory/3128-119-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/3128-121-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4544-122-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4544-276-0x0000000000400000-0x0000000000491000-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	e892ab03ade3ed2e60ac6a42ebff863d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e892ab03ade3ed2e60ac6a42ebff863d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e892ab03ade3ed2e60ac6a42ebff863d_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4544 wrote to memory of 4420	4544	e892ab03ade3ed2e60ac6a42ebff863d_JaffaCakes118.exe	82
PID 4544 wrote to memory of 4420	4544	e892ab03ade3ed2e60ac6a42ebff863d_JaffaCakes118.exe	82
PID 4544 wrote to memory of 4420	4544	e892ab03ade3ed2e60ac6a42ebff863d_JaffaCakes118.exe	82
PID 4544 wrote to memory of 3128	4544	e892ab03ade3ed2e60ac6a42ebff863d_JaffaCakes118.exe	88
PID 4544 wrote to memory of 3128	4544	e892ab03ade3ed2e60ac6a42ebff863d_JaffaCakes118.exe	88
PID 4544 wrote to memory of 3128	4544	e892ab03ade3ed2e60ac6a42ebff863d_JaffaCakes118.exe	88

C:\Users\Admin\AppData\Local\Temp\e892ab03ade3ed2e60ac6a42ebff863d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e892ab03ade3ed2e60ac6a42ebff863d_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4544
- C:\Users\Admin\AppData\Local\Temp\e892ab03ade3ed2e60ac6a42ebff863d_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e892ab03ade3ed2e60ac6a42ebff863d_JaffaCakes118.exe startC:\Program Files (x86)\LP\5992\090.exe%C:\Program Files (x86)\LP\5992
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4420
- C:\Users\Admin\AppData\Local\Temp\e892ab03ade3ed2e60ac6a42ebff863d_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e892ab03ade3ed2e60ac6a42ebff863d_JaffaCakes118.exe startC:\Program Files (x86)\F7EDF\lvvm.exe%C:\Program Files (x86)\F7EDF
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3128

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\2B8F7\7EDF.B8F

Filesize
300B

MD5
81a33eb5ad6fbb8340a061c5f84d97fb

SHA1
3a0f0b2c391d2cd25636a6929fe28610c437385a

SHA256
cd938b73298a7b5d48da28c2f5fd6b15860170e0dbba810d7556c497681ec38b

SHA512
abc5436353aaa2278032e31094d49940c9190b69662df50a07025a4e6b4581a98d9fd2cb0a91f207d602747203c351993a2f7dd69f2fec874c2bc1e0f65a07d6

Download Submit
C:\Users\Admin\AppData\Roaming\2B8F7\7EDF.B8F

Filesize
996B

MD5
be9cda581f7249bf3f0742dc8f647ae9

SHA1
106fcf4c73b6d7e5933d953956468ad877f5507f

SHA256
ac389e8eb060988ad304556faaa43a3823b9184039650a49c892ea58042d87df

SHA512
e199b746463a936b7b12f8e404c255c4328bb8de4690f4953992fbd64da0cf3e8cf049a303b7cec8b658b2049c17a38a5f3ad22ef8c21a4467f14fdc365f32b4

Download Submit
C:\Users\Admin\AppData\Roaming\2B8F7\7EDF.B8F

Filesize
600B

MD5
ce972d9336f6075f4c864c2fece45909

SHA1
5f3927d7897a0d2929745a2e9d13f1f1e04f7a1b

SHA256
0fa031e4aea046cbba3cfd70cd56978aaf20376262c3968481152b35eb61219f

SHA512
cbb3251c2f0a1207e845303d506f717b53702e9b2d313e1c28c6118590bde51660acc0bcbd452da74a10f33151e888d614fc3856418fdeb590537e9c9be07cfd

Download Submit
C:\Users\Admin\AppData\Roaming\2B8F7\7EDF.B8F

Filesize
1KB

MD5
163ba983bfd616cc669c5d90af2226b9

SHA1
c1581e7adefe40384f9f16237e14c2e5bb496d09

SHA256
8abcb8c71b9b17f8b580eb2208e9b14b6365214a5973549cd759ee179df10c2e

SHA512
9f1d888eb9f83b2184c54028990be42359850e1a46b57040682e722e8941210fbf15c303ca344bbfbc12751ea151ccf67b6250636261607c33e3dade98fb37ef

Download Submit
memory/3128-119-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3128-121-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4420-15-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4420-14-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4544-16-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4544-17-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/4544-0-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4544-122-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4544-3-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4544-2-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/4544-276-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads