cycbot | ff3a0792954dbbadbb8df68756c26d8e981bb6332f6d41100d1342d4f43e2a9e

General

Target

JaffaCakes118_6efcafcd67f55f3f028f75f5880e40fd.exe
Size

154KB
MD5

6efcafcd67f55f3f028f75f5880e40fd
SHA1

ba639084abdda305a301e0b7613f67acafe49ad2
SHA256

ff3a0792954dbbadbb8df68756c26d8e981bb6332f6d41100d1342d4f43e2a9e
SHA512

9280625befabc6c58e4a8a531229d4d981007bcad3969d5df93f4b3f75cd4740b8d0e307623d610aa82f523fe156ab28bfac1eecc307c92f2c45058fd5876ae5
SSDEEP

3072:magHBId31S6RmJNZVkcqnzpKTwBstNh46Ne1:mageFNREvV+FKTDv4+e1

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 5 IoCs

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

resource	yara_rule
behavioral1/memory/2328-7-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1736-15-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1736-83-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1664-86-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1736-194-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\conhost = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\conhost.exe"	JaffaCakes118_6efcafcd67f55f3f028f75f5880e40fd.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1736-2-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2328-5-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2328-6-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2328-7-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1736-15-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1736-83-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1664-86-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1736-194-0x0000000000400000-0x0000000000442000-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_6efcafcd67f55f3f028f75f5880e40fd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6efcafcd67f55f3f028f75f5880e40fd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6efcafcd67f55f3f028f75f5880e40fd.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1736 wrote to memory of 2328	1736	JaffaCakes118_6efcafcd67f55f3f028f75f5880e40fd.exe	30
PID 1736 wrote to memory of 2328	1736	JaffaCakes118_6efcafcd67f55f3f028f75f5880e40fd.exe	30
PID 1736 wrote to memory of 2328	1736	JaffaCakes118_6efcafcd67f55f3f028f75f5880e40fd.exe	30
PID 1736 wrote to memory of 2328	1736	JaffaCakes118_6efcafcd67f55f3f028f75f5880e40fd.exe	30
PID 1736 wrote to memory of 1664	1736	JaffaCakes118_6efcafcd67f55f3f028f75f5880e40fd.exe	33
PID 1736 wrote to memory of 1664	1736	JaffaCakes118_6efcafcd67f55f3f028f75f5880e40fd.exe	33
PID 1736 wrote to memory of 1664	1736	JaffaCakes118_6efcafcd67f55f3f028f75f5880e40fd.exe	33
PID 1736 wrote to memory of 1664	1736	JaffaCakes118_6efcafcd67f55f3f028f75f5880e40fd.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6efcafcd67f55f3f028f75f5880e40fd.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6efcafcd67f55f3f028f75f5880e40fd.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1736
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6efcafcd67f55f3f028f75f5880e40fd.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6efcafcd67f55f3f028f75f5880e40fd.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2328
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6efcafcd67f55f3f028f75f5880e40fd.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6efcafcd67f55f3f028f75f5880e40fd.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1664

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

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\59D6.829

Filesize
1KB

MD5
06d2d16ab3aa21d84780527a1315a920

SHA1
656a9f4a1ae87e560f3ea44edd43427b0500f02c

SHA256
3a5b76b1cf1fefd99fe6c35d12df5029f763eb339c05fae6474c30565f04542a

SHA512
209ca0e7ff84dcdf3204290b8701978d26902bee31be8fbef5b2c4af5d91226cd9f211c6e720712fc588875d6803ea5db454ce296f250130e82088173c1fce5a

Download Submit
C:\Users\Admin\AppData\Roaming\59D6.829

Filesize
1KB

MD5
68595b057d6bc938dd650e8b72e1dc07

SHA1
2e9a4582a7555536f059eeafb6d9a5f9f43ff3ef

SHA256
95659b82e2ac7e185639aa7e47775720ca2a7875666f01485e151245089882b8

SHA512
f25928c30ececc4311805ad9c0bf5f809a9f778b732a01c843c9ad30e33bf92d0b8c91d8828891131422df1db916747277fd2f5b0a2a5bd3214d1e4ab8c653bc

Download Submit
C:\Users\Admin\AppData\Roaming\59D6.829

Filesize
600B

MD5
2d9efe98623a85bfc0c2581919c4989a

SHA1
fc1d9fe5f2165e65cbd520a900aee2e5d19f21ff

SHA256
c8d246f3d53770efbb31573de442b3ab54936cd1d6f44227dd659ad2fa79b65d

SHA512
7fd73b700cb500184e699ca13744ab6b0ee2d408f5e7a88a8d9b17ee0f8f1f0edca97ea14f29a814979ecec2be0023e0c07ea3ac9408605d10a31912486a768a

Download Submit
C:\Users\Admin\AppData\Roaming\59D6.829

Filesize
996B

MD5
90c81973211cd79fdc99bf22330016d1

SHA1
0d9f8453c0d3009a0827c967ec076b7aaa88de62

SHA256
46e48bf9f217aa63c6128bb3ed11ccc143e8ca7e43efa1c6e80ec33537b10fe3

SHA512
add05b3063bac82bcafe376b4e0f7fbcf65e8fb6605989bb2cb2ccd204a8272a55e73c296e381e382b26e61e092fa65c6fe079409e2a770a82e6af851b4fcc6d

Download Submit
memory/1664-86-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1736-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1736-83-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1736-1-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1736-2-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1736-194-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2328-7-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2328-6-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2328-5-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads