cycbot | b8b6f794646b7839e2e65a6b241fdd02a63373be3706672ed5684cf594611f7f

General

Target

99d397aac5d403a4f8ca0e94a5a4793d_JaffaCakes118.exe
Size

177KB
MD5

99d397aac5d403a4f8ca0e94a5a4793d
SHA1

92aed3a5e1b011a3688de504f24f5703754aaa8a
SHA256

b8b6f794646b7839e2e65a6b241fdd02a63373be3706672ed5684cf594611f7f
SHA512

2dcb6b18a050c2fbb127300e42ba504c68cf9ce3394abae6d55c5176ccfde42565e38c6d02bdff6022ec72afa42809ca182cdcd87ef03e4f802fbb8c23f077e9
SSDEEP

3072:VHGuZBKl0neRybgnEF21PbSLtmdQ3IeyWHfFpaz5BeqSSLjig6kiEoD/t9v:V7ZcynBB21omdMHHzYJxjig6kid9v

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 5 IoCs

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

resource	yara_rule
behavioral1/memory/2520-15-0x0000000000400000-0x000000000046C000-memory.dmp	family_cycbot
behavioral1/memory/2520-13-0x0000000000400000-0x000000000046C000-memory.dmp	family_cycbot
behavioral1/memory/2500-16-0x0000000000400000-0x000000000046C000-memory.dmp	family_cycbot
behavioral1/memory/2652-85-0x0000000000400000-0x000000000046C000-memory.dmp	family_cycbot
behavioral1/memory/2500-198-0x0000000000400000-0x000000000046C000-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/2500-2-0x0000000000400000-0x000000000046C000-memory.dmp	upx
behavioral1/memory/2520-15-0x0000000000400000-0x000000000046C000-memory.dmp	upx
behavioral1/memory/2520-13-0x0000000000400000-0x000000000046C000-memory.dmp	upx
behavioral1/memory/2500-16-0x0000000000400000-0x000000000046C000-memory.dmp	upx
behavioral1/memory/2652-85-0x0000000000400000-0x000000000046C000-memory.dmp	upx
behavioral1/memory/2652-84-0x0000000000400000-0x000000000046C000-memory.dmp	upx
behavioral1/memory/2500-198-0x0000000000400000-0x000000000046C000-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	99d397aac5d403a4f8ca0e94a5a4793d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	99d397aac5d403a4f8ca0e94a5a4793d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	99d397aac5d403a4f8ca0e94a5a4793d_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2500 wrote to memory of 2520	2500	99d397aac5d403a4f8ca0e94a5a4793d_JaffaCakes118.exe	30
PID 2500 wrote to memory of 2520	2500	99d397aac5d403a4f8ca0e94a5a4793d_JaffaCakes118.exe	30
PID 2500 wrote to memory of 2520	2500	99d397aac5d403a4f8ca0e94a5a4793d_JaffaCakes118.exe	30
PID 2500 wrote to memory of 2520	2500	99d397aac5d403a4f8ca0e94a5a4793d_JaffaCakes118.exe	30
PID 2500 wrote to memory of 2652	2500	99d397aac5d403a4f8ca0e94a5a4793d_JaffaCakes118.exe	33
PID 2500 wrote to memory of 2652	2500	99d397aac5d403a4f8ca0e94a5a4793d_JaffaCakes118.exe	33
PID 2500 wrote to memory of 2652	2500	99d397aac5d403a4f8ca0e94a5a4793d_JaffaCakes118.exe	33
PID 2500 wrote to memory of 2652	2500	99d397aac5d403a4f8ca0e94a5a4793d_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\99d397aac5d403a4f8ca0e94a5a4793d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\99d397aac5d403a4f8ca0e94a5a4793d_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2500
- C:\Users\Admin\AppData\Local\Temp\99d397aac5d403a4f8ca0e94a5a4793d_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\99d397aac5d403a4f8ca0e94a5a4793d_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2520
- C:\Users\Admin\AppData\Local\Temp\99d397aac5d403a4f8ca0e94a5a4793d_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\99d397aac5d403a4f8ca0e94a5a4793d_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2652

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\E192.C0A

Filesize
1KB

MD5
d0f5a9e0d5af86ff78a3d34386b5cc77

SHA1
bbc9ff154b241eddbea69d2889bcd00efdb1495e

SHA256
1ea7ca9f6f863cead75ed04dd03a8b006f3f3d4c8f2d772c03d0ddb1efafda9f

SHA512
18ca6c1f00d62c5074a388d263d78ae4602d235c39c3501c2474ad4c5f53a6dec3440f300906f02f6a191acfcdcafff5261802dbf39a4308e1dcc15f03e43b8e

Download Submit
C:\Users\Admin\AppData\Roaming\E192.C0A

Filesize
600B

MD5
3b8de13ac1a4d0e00d8233b026c6ad83

SHA1
dbd9942df5dc4de5404934bc1216b50c4cff0306

SHA256
9d8bd526194ab2e993ae73337fba4fb89e4c7e486126c7a5bf4c1b7513d14ffa

SHA512
d37e16ead4b5946b3dc7c017169aabd764d66301fa47770e8a58cabcb09cf39a6f083800e675fc5a87d00670a6948e8e0f4566f490b71c33a9bddf6badec54b0

Download Submit
C:\Users\Admin\AppData\Roaming\E192.C0A

Filesize
996B

MD5
51b4264d52dcbd79e19f609b67741637

SHA1
d4d5ec41ec085bdde993a4a0e642a6ede49fd132

SHA256
a775b85ccdf7377d2bff9a686fa57079872cb3d7da8b0e52d9c423ee187f9aaf

SHA512
9e142908c3116b5661278c2ee09d35526699886cbb19317becbdf18114d93c5aaa6c095f75d1bd9e4e3248449d267b6079fa81b4d71a8beab16f9b52d34b17cf

Download Submit
memory/2500-1-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/2500-2-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/2500-16-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/2500-198-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/2520-12-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/2520-15-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/2520-13-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/2652-85-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/2652-84-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download

Analysis

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