cycbot | 4c0a068a433397c579cafa1ec221622d0168daed98ee4b61514c46bcdac3f942

General

Target

JaffaCakes118_11f7c6e7363a4ae04e94413cab5841e7.exe
Size

171KB
MD5

11f7c6e7363a4ae04e94413cab5841e7
SHA1

96ce6b0878f37162df0266773154e8c7bdde1179
SHA256

4c0a068a433397c579cafa1ec221622d0168daed98ee4b61514c46bcdac3f942
SHA512

a92a51232e7f682bd808de0a7ac84fbc7bd7f510249067ee138ce4d803815f3e69dd64fdffd6e3180ecb4e461e036d23551c5067aaa418e596c065f4719d9125
SSDEEP

3072:kJWkNI8PM+RaFCD8Im7lVkl/I286gGpZaiOnuYalaY+bQuQwO1i0S2Zw6ykqKtH:S/XM+RwKZm7lVklw6gCZaJfa4YeQp7Mp

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 7 IoCs

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

resource	yara_rule
behavioral2/memory/1952-16-0x0000000000400000-0x00000000004A2000-memory.dmp	family_cycbot
behavioral2/memory/4032-17-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/4032-18-0x0000000000400000-0x00000000004A2000-memory.dmp	family_cycbot
behavioral2/memory/4032-79-0x0000000000400000-0x00000000004A2000-memory.dmp	family_cycbot
behavioral2/memory/4104-83-0x0000000000400000-0x00000000004A2000-memory.dmp	family_cycbot
behavioral2/memory/4032-184-0x0000000000400000-0x00000000004A2000-memory.dmp	family_cycbot
behavioral2/memory/4032-186-0x0000000000400000-0x00000000004A2000-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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\ED236\\5E6C2.exe"	JaffaCakes118_11f7c6e7363a4ae04e94413cab5841e7.exe

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4032-2-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/4032-3-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/1952-14-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/1952-16-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/4032-17-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/4032-18-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/4032-79-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/4104-82-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/4104-83-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/4032-184-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/4032-186-0x0000000000400000-0x00000000004A2000-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_11f7c6e7363a4ae04e94413cab5841e7.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4032 wrote to memory of 1952	4032	JaffaCakes118_11f7c6e7363a4ae04e94413cab5841e7.exe	85
PID 4032 wrote to memory of 1952	4032	JaffaCakes118_11f7c6e7363a4ae04e94413cab5841e7.exe	85
PID 4032 wrote to memory of 1952	4032	JaffaCakes118_11f7c6e7363a4ae04e94413cab5841e7.exe	85
PID 4032 wrote to memory of 4104	4032	JaffaCakes118_11f7c6e7363a4ae04e94413cab5841e7.exe	86
PID 4032 wrote to memory of 4104	4032	JaffaCakes118_11f7c6e7363a4ae04e94413cab5841e7.exe	86
PID 4032 wrote to memory of 4104	4032	JaffaCakes118_11f7c6e7363a4ae04e94413cab5841e7.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_11f7c6e7363a4ae04e94413cab5841e7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_11f7c6e7363a4ae04e94413cab5841e7.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4032
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_11f7c6e7363a4ae04e94413cab5841e7.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_11f7c6e7363a4ae04e94413cab5841e7.exe startC:\Program Files (x86)\LP\C2EE\D78.exe%C:\Program Files (x86)\LP\C2EE
  2⤵
  PID:1952
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_11f7c6e7363a4ae04e94413cab5841e7.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_11f7c6e7363a4ae04e94413cab5841e7.exe startC:\Program Files (x86)\3634F\lvvm.exe%C:\Program Files (x86)\3634F
  2⤵
  PID:4104

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\ED236\634F.D23

Filesize
1KB

MD5
e7be41b28bb1b624447fb8457924719d

SHA1
42981f6a5dc99aedccebd28192659e9d755b8285

SHA256
3c578319b9d5cbd74fa41119054f77b6f05b59273de3587f57fbadcee78c9e26

SHA512
24991e17c5f74fc22bf7afb84a1262a0fd71667f805738da4d9ac38051384d977142c1684eb541db2aa22932d6b9626324cc41fae82988242b70a712d92a394f

Download Submit
C:\Users\Admin\AppData\Roaming\ED236\634F.D23

Filesize
600B

MD5
bdb5999a31be498cedcd7e5b71f01557

SHA1
ef02fb150e2c07caf6b9ab58de0e07b3b9ef6d95

SHA256
674945f850c0016be932a177cf8590ef94e02ccec88aae9c4368ae11708a1fa9

SHA512
28c3d781af68b041664a2b5f8158eee5b87bcd9428172e490fd0ac5f9c68d2dc913dfc3345b51ea83e6928dc000eb780ad0ac7e33f48f175d90bb490220b00cf

Download Submit
C:\Users\Admin\AppData\Roaming\ED236\634F.D23

Filesize
996B

MD5
4172be140d0545013fc16fe66d103669

SHA1
bb8feddafeb120a286fb7187e2a380589b2baeac

SHA256
e0c564723b4c77d6890c857357039a21f00a209bf01587f090ab6c796c02d7e5

SHA512
83fb1215843700845cae55aa2c9ad99588bd5165c9c9085a42c7aa94175bb4b80d245603a5c7a241812969c0c135c349b7314e74bb39a31682720f444c76649c

Download Submit
memory/1952-14-0x0000000000400000-0x00000000004A2000-memory.dmp

Filesize
648KB

Download
memory/1952-13-0x0000000000400000-0x00000000004A2000-memory.dmp

Filesize
648KB

Download
memory/1952-16-0x0000000000400000-0x00000000004A2000-memory.dmp

Filesize
648KB

Download
memory/4032-3-0x0000000000400000-0x00000000004A2000-memory.dmp

Filesize
648KB

Download
memory/4032-18-0x0000000000400000-0x00000000004A2000-memory.dmp

Filesize
648KB

Download
memory/4032-17-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/4032-79-0x0000000000400000-0x00000000004A2000-memory.dmp

Filesize
648KB

Download
memory/4032-0-0x0000000000400000-0x00000000004A2000-memory.dmp

Filesize
648KB

Download
memory/4032-2-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/4032-184-0x0000000000400000-0x00000000004A2000-memory.dmp

Filesize
648KB

Download
memory/4032-186-0x0000000000400000-0x00000000004A2000-memory.dmp

Filesize
648KB

Download
memory/4104-80-0x0000000000400000-0x00000000004A2000-memory.dmp

Filesize
648KB

Download
memory/4104-82-0x0000000000400000-0x00000000004A2000-memory.dmp

Filesize
648KB

Download
memory/4104-83-0x0000000000400000-0x00000000004A2000-memory.dmp

Filesize
648KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads