cycbot | 1b7b3d299cf781d70114c181b33de22d47bf20e53106c28969e83cc8d4e9b3b4

General

Target

JaffaCakes118_3f988b87a302eaeaf144e47c873a996b.exe
Size

182KB
MD5

3f988b87a302eaeaf144e47c873a996b
SHA1

f6fd1d58d5c418e248389a9eeab068f801564053
SHA256

1b7b3d299cf781d70114c181b33de22d47bf20e53106c28969e83cc8d4e9b3b4
SHA512

385176c703cac543225a292128f329e33c0fcff38a5e1fef412e081d6c8abb0c4b9495b0457b4e2d0cf581c970f69509b4bc053d20c091ef85fdde97593e2c28
SSDEEP

3072:CupClVC5JKgLsLicBGBGwlnwASgDnkYb6HKbNsrXpc:C9l88gYBa5BTm/e

Score

10^/10

cycbot backdoor discovery 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 4 IoCs

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

resource	yara_rule
behavioral1/memory/2080-18-0x0000000000400000-0x0000000000450000-memory.dmp	family_cycbot
behavioral1/memory/2504-19-0x0000000000400000-0x0000000000450000-memory.dmp	family_cycbot
behavioral1/memory/2624-89-0x0000000000400000-0x0000000000450000-memory.dmp	family_cycbot
behavioral1/memory/2504-196-0x0000000000400000-0x0000000000450000-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

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2504-2-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral1/memory/2080-18-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral1/memory/2080-17-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral1/memory/2504-19-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral1/memory/2624-87-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral1/memory/2624-89-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral1/memory/2504-196-0x0000000000400000-0x0000000000450000-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_3f988b87a302eaeaf144e47c873a996b.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2504 wrote to memory of 2080	2504	JaffaCakes118_3f988b87a302eaeaf144e47c873a996b.exe	30
PID 2504 wrote to memory of 2080	2504	JaffaCakes118_3f988b87a302eaeaf144e47c873a996b.exe	30
PID 2504 wrote to memory of 2080	2504	JaffaCakes118_3f988b87a302eaeaf144e47c873a996b.exe	30
PID 2504 wrote to memory of 2080	2504	JaffaCakes118_3f988b87a302eaeaf144e47c873a996b.exe	30
PID 2504 wrote to memory of 2624	2504	JaffaCakes118_3f988b87a302eaeaf144e47c873a996b.exe	33
PID 2504 wrote to memory of 2624	2504	JaffaCakes118_3f988b87a302eaeaf144e47c873a996b.exe	33
PID 2504 wrote to memory of 2624	2504	JaffaCakes118_3f988b87a302eaeaf144e47c873a996b.exe	33
PID 2504 wrote to memory of 2624	2504	JaffaCakes118_3f988b87a302eaeaf144e47c873a996b.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3f988b87a302eaeaf144e47c873a996b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3f988b87a302eaeaf144e47c873a996b.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2504
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3f988b87a302eaeaf144e47c873a996b.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3f988b87a302eaeaf144e47c873a996b.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  PID:2080
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3f988b87a302eaeaf144e47c873a996b.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3f988b87a302eaeaf144e47c873a996b.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  PID:2624

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\9F0B.B3C

Filesize
597B

MD5
f9f6b9dd612fb8d11afc4d856fa1f432

SHA1
24ba8dee6431a4fae9c41ddd0ed5f8885c4e1ba7

SHA256
3a4c10210ae8b7a588245520df1712594e0dfb3249373375df7768ec47deb812

SHA512
cca732902ea8a1d02e9e2d694771166074e3ee72b22863aa168366d1995eb197b01bd65094ad4356ef9884714c48ef4ff938bb02536833a62470cd54ef06ca93

Download Submit
C:\Users\Admin\AppData\Roaming\9F0B.B3C

Filesize
1KB

MD5
2a8e71277b6662281a74851c8aefbdba

SHA1
3efef248037b88da25a3ce055578f4aa90321039

SHA256
61c87a48bc98f9af0b5c769298b4837498ccda4705a90ed590810ad1698d298e

SHA512
1596ad73f9cadfe262a00692dd88af0266ffaea1ce8554dc300c2a7e56c41c0735cc95b4de4227d3f73d5e15758868ea1f9ca2929858bb2fb69270055d34f659

Download Submit
C:\Users\Admin\AppData\Roaming\9F0B.B3C

Filesize
897B

MD5
da70c5a263e9177c3f0aaed3523c26c7

SHA1
ac24478a82fc334153a21a1d2a6229895cc76096

SHA256
227f72b05148da42ea975238010a490adab6e3338b47835905b9ff7c8aa1a61f

SHA512
57ff359fe9795eb2025107ab5f3fabd00f23f04ae09a9345f15ce1b3f14d373781a3a85d94dfd05e6decff1a33d047f19a43d3583429363e174ad2458821f0a3

Download Submit
C:\Users\Admin\AppData\Roaming\9F0B.B3C

Filesize
1KB

MD5
722330e3ec5415c3c5287dbced44e113

SHA1
236e1a3286c8b60d425d3a875d1e8dee51666e41

SHA256
f0767dbed4a250ca3cd1166c00f5955a5d37ba8a8196328598624e625e30571a

SHA512
592165213436e9d1c47e67cbf782da65a93aaceb620272451fc15fc0a79a931ad9c7164e5d0d0a73c68e1a5f797a9d4b60520baf60e59fa19d7dde26636b397e

Download Submit
memory/2080-18-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2080-17-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2504-1-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2504-2-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2504-19-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2504-196-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2624-87-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2624-89-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download

Analysis

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