cycbot | 0a67c215dfb9deb1957afc5c48e7d3b92671a744ad957c84c1d1c6a1251118ee

General

Target

JaffaCakes118_7954234d238ec0d58f2bdab1900a08c2.exe
Size

178KB
MD5

7954234d238ec0d58f2bdab1900a08c2
SHA1

e84c32ca7d6e8d0e2495e77dd1223a5c33ff6583
SHA256

0a67c215dfb9deb1957afc5c48e7d3b92671a744ad957c84c1d1c6a1251118ee
SHA512

a21820f484e4a8f9c289f0e8563561b52480c1f24db5c2e101ab35fe19b546796043e08597643b68493b59d7249d5e3e1c10f201b7bc13994a7ad45dbe50d9c6
SSDEEP

3072:AxfwhcNwS+YJbuAf8PF8o1IqNaqsoQgZReFv9CMEwWIammbbltlhHQo/uTBz:9GbJbvto1OoQg6uMENXltlVQo/ut

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 5 IoCs

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

resource	yara_rule
behavioral2/memory/1496-12-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/2272-13-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/2272-69-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/5016-74-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/2272-191-0x0000000000400000-0x000000000048D000-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\\dwm.exe"	JaffaCakes118_7954234d238ec0d58f2bdab1900a08c2.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2272-1-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/2272-2-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/1496-12-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/2272-13-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/2272-69-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/5016-72-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/5016-74-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/2272-191-0x0000000000400000-0x000000000048D000-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	JaffaCakes118_7954234d238ec0d58f2bdab1900a08c2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7954234d238ec0d58f2bdab1900a08c2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7954234d238ec0d58f2bdab1900a08c2.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 1496	2272	JaffaCakes118_7954234d238ec0d58f2bdab1900a08c2.exe	82
PID 2272 wrote to memory of 1496	2272	JaffaCakes118_7954234d238ec0d58f2bdab1900a08c2.exe	82
PID 2272 wrote to memory of 1496	2272	JaffaCakes118_7954234d238ec0d58f2bdab1900a08c2.exe	82
PID 2272 wrote to memory of 5016	2272	JaffaCakes118_7954234d238ec0d58f2bdab1900a08c2.exe	83
PID 2272 wrote to memory of 5016	2272	JaffaCakes118_7954234d238ec0d58f2bdab1900a08c2.exe	83
PID 2272 wrote to memory of 5016	2272	JaffaCakes118_7954234d238ec0d58f2bdab1900a08c2.exe	83

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7954234d238ec0d58f2bdab1900a08c2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7954234d238ec0d58f2bdab1900a08c2.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2272
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7954234d238ec0d58f2bdab1900a08c2.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7954234d238ec0d58f2bdab1900a08c2.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1496
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7954234d238ec0d58f2bdab1900a08c2.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7954234d238ec0d58f2bdab1900a08c2.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5016

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\1241.80E

Filesize
1KB

MD5
e6f39956116f515a7f5c571dc8038e60

SHA1
13d3d7365413f1b08ddc93763518484394f9eea7

SHA256
f6d7fb2910a00e5bf2705c57ac0da0019f2934e701dc1580b10be0d0511be5a0

SHA512
959563d9b6eea9f031c54f3bce6f2f7690ef78c4173bc465df88624abecfff1d0dda14f663f8e0f686f1364beff067220e75ea93a04a024f3697c0eedf56b1e6

Download Submit
C:\Users\Admin\AppData\Roaming\1241.80E

Filesize
600B

MD5
10fd9dcd4e4ab2990e1e640f71518f9f

SHA1
7b37cd85adb9ca980c8cc8fabda0c5584612720a

SHA256
85b700abac4c7bc865b18022c270e381dd0444b1a3f2fbff990922cfcddf79c6

SHA512
c08ce73ba1f5508a7335fa3bf216e7b5a701d61b8ab3a596f5b6ff7836e69f45880eeb8b0b84f6eb5f356e16a19010b5429aae0289b8ec2e6094816050b2dc92

Download Submit
C:\Users\Admin\AppData\Roaming\1241.80E

Filesize
996B

MD5
0373da580d10ce266c6684b6f4ff2a78

SHA1
8a5f0d062e7122efc04fdb39e7480e18d7b9f1fa

SHA256
e358da5abfb62a855ac4f6f12b631c848d832e592658006217df25c981d62940

SHA512
ff3922552759ddd485374eade1dfe70285ee70138bbafc0bcb1d2584d6b312bd572724831663b38a145ba6da1c68fff9858cd86f97d4645dc2b84faaeab3f0bf

Download Submit
memory/1496-12-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2272-1-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2272-2-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2272-13-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2272-69-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2272-191-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/5016-72-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/5016-71-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/5016-74-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads