cycbot | c9375aa7c4ba5f8dea24a40a4dd67e7ffb232f08d63e05c4044b862ced5251c3

General

Target

ec477414a41353fe0ef989b49ee5601b_JaffaCakes118.exe
Size

169KB
MD5

ec477414a41353fe0ef989b49ee5601b
SHA1

7e05292993ffe029a5642cc1b26cd7a0eeaa9c9e
SHA256

c9375aa7c4ba5f8dea24a40a4dd67e7ffb232f08d63e05c4044b862ced5251c3
SHA512

645702e775923febe5001eb18954efc76d7b7360107687922f690713f31c8549989d9243cbeb64b4a849849f64103db86300446d4e74c04ddecb985c6df3bd65
SSDEEP

3072:CY1hC/qJjfzN3vb67yN4RpKcZRhBDBRA5bQHACbpb8MO99R/P9NkPOd3MOYs:CYSyh53PNaPZR4VS98bnEPOd3M4

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/2064-10-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/2436-11-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral2/memory/2436-12-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/2436-78-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/2340-83-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/2436-188-0x0000000000400000-0x0000000000491000-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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\EDD9C\\6D852.exe"	ec477414a41353fe0ef989b49ee5601b_JaffaCakes118.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2436-2-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2064-9-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2064-10-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2436-11-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral2/memory/2436-12-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2436-78-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2340-81-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2340-80-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2340-83-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2436-188-0x0000000000400000-0x0000000000491000-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	ec477414a41353fe0ef989b49ee5601b_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2436 wrote to memory of 2064	2436	ec477414a41353fe0ef989b49ee5601b_JaffaCakes118.exe	83
PID 2436 wrote to memory of 2064	2436	ec477414a41353fe0ef989b49ee5601b_JaffaCakes118.exe	83
PID 2436 wrote to memory of 2064	2436	ec477414a41353fe0ef989b49ee5601b_JaffaCakes118.exe	83
PID 2436 wrote to memory of 2340	2436	ec477414a41353fe0ef989b49ee5601b_JaffaCakes118.exe	85
PID 2436 wrote to memory of 2340	2436	ec477414a41353fe0ef989b49ee5601b_JaffaCakes118.exe	85
PID 2436 wrote to memory of 2340	2436	ec477414a41353fe0ef989b49ee5601b_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\ec477414a41353fe0ef989b49ee5601b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ec477414a41353fe0ef989b49ee5601b_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2436
- C:\Users\Admin\AppData\Local\Temp\ec477414a41353fe0ef989b49ee5601b_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\ec477414a41353fe0ef989b49ee5601b_JaffaCakes118.exe startC:\Program Files (x86)\LP\528E\9D9.exe%C:\Program Files (x86)\LP\528E
  2⤵
  PID:2064
- C:\Users\Admin\AppData\Local\Temp\ec477414a41353fe0ef989b49ee5601b_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\ec477414a41353fe0ef989b49ee5601b_JaffaCakes118.exe startC:\Program Files (x86)\9C36B\lvvm.exe%C:\Program Files (x86)\9C36B
  2⤵
  PID:2340

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\EDD9C\C36B.DD9

Filesize
300B

MD5
c999f17a1dc550783b7456acc0cad6bf

SHA1
fc8b40f38d7c9e81bd67e81270bf96a341a133d6

SHA256
9af74c0a1baf41786f60199c678689b2b31aa5f7ef81b8d85442f6b657478ef2

SHA512
19d4da91384fb0e64ef40c34619902d0c010429f24f74e7706e396bef6a886c2aca4768fd4b35c62a3622ea84f4e6b4c4018a2ee3edadd55f82adc76d1114843

Download Submit
C:\Users\Admin\AppData\Roaming\EDD9C\C36B.DD9

Filesize
1KB

MD5
f08338adc4e6a8a17b8805518d0f7b85

SHA1
b4fbe489581525983c34c98c40f910f0c04e87ff

SHA256
d5f9ecc4facc4b292404e8556e78d1b068205910a9ce537abd1496b745f27bf2

SHA512
4911149a2d7a4d6d82df2e7bfd00c18b6d085640ebb002a10db901b234db3311947f93fe9d3435f81ed98375a94ca37f16032b265bd28a99bec2f7db4a078296

Download Submit
C:\Users\Admin\AppData\Roaming\EDD9C\C36B.DD9

Filesize
696B

MD5
27d3a2cd084f6874a5cc3feee51388eb

SHA1
e98b36177b6de93269686e7443d4dad6ee11912a

SHA256
e30bd7d84567e9215c7c6f89b369cb4ae87103e5a01cf216c5129ab2664fff90

SHA512
71457e7070e2698e2e72d53f9feba6890d6661077c0b7bada7cdf3b555b12a434d6de8e893ed57e9aa90772647fd05ef55354cdd157f3639931cfe4aa6fe44c5

Download Submit
memory/2064-9-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2064-8-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2064-10-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2340-81-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2340-80-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2340-83-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2436-12-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2436-78-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2436-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2436-11-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2436-2-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2436-188-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads