2fa3267ec3e2208337c09227702d4ab3ec4c230ead81c4aa88d05512825df526

Analysis

max time kernel
141s
max time network
133s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
21/06/2022, 19:43

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General

Target
2fa3267ec3e2208337c09227702d4ab3ec4c230ead81c4aa88d05512825df526.exe
Size 1008KB
Sample220621-yfrcradhh8
SHA256 2fa3267ec3e2208337c09227702d4ab3ec4c230ead81c4aa88d05512825df526
MD5 475dd897c919392ac240d9281397d4c6
SHA1 fc9bae14ae0a6270fa9c46af61ae796f4464cf4d
SHA512 40e2ac523bc51203e2c7485791bb576bd772f6d639c32d78c2d51ebcd7e819c0915b5008aa499ec7248a8f3585ddf765612085c45d627d3ea58a6233394f83fc
MD5 SHA1 SHA512

Score

9^/10

collection

Malware Config

Signatures

NirSoft MailPassView 3 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/4152-148-0x0000000000400000-0x000000000041C000-memory.dmp	MailPassView
behavioral2/memory/4152-150-0x0000000000400000-0x000000000041C000-memory.dmp	MailPassView
behavioral2/memory/4152-151-0x0000000000400000-0x000000000041C000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 4 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/2316-141-0x0000000000400000-0x000000000045B000-memory.dmp	WebBrowserPassView
behavioral2/memory/2316-143-0x0000000000400000-0x000000000045B000-memory.dmp	WebBrowserPassView
behavioral2/memory/2316-144-0x0000000000400000-0x000000000045B000-memory.dmp	WebBrowserPassView
behavioral2/memory/2316-145-0x0000000000400000-0x000000000045B000-memory.dmp	WebBrowserPassView

Nirsoft 7 IoCs

resource	yara_rule
behavioral2/memory/2316-141-0x0000000000400000-0x000000000045B000-memory.dmp	Nirsoft
behavioral2/memory/2316-143-0x0000000000400000-0x000000000045B000-memory.dmp	Nirsoft
behavioral2/memory/2316-144-0x0000000000400000-0x000000000045B000-memory.dmp	Nirsoft
behavioral2/memory/2316-145-0x0000000000400000-0x000000000045B000-memory.dmp	Nirsoft
behavioral2/memory/4152-148-0x0000000000400000-0x000000000041C000-memory.dmp	Nirsoft
behavioral2/memory/4152-150-0x0000000000400000-0x000000000041C000-memory.dmp	Nirsoft
behavioral2/memory/4152-151-0x0000000000400000-0x000000000041C000-memory.dmp	Nirsoft

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	2fa3267ec3e2208337c09227702d4ab3ec4c230ead81c4aa88d05512825df526.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	vbc.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1564 set thread context of 4480	1564	2fa3267ec3e2208337c09227702d4ab3ec4c230ead81c4aa88d05512825df526.exe	86
PID 4480 set thread context of 2316	4480	RegAsm.exe	91
PID 4480 set thread context of 4152	4480	RegAsm.exe	92

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
3352	schtasks.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
1564	2fa3267ec3e2208337c09227702d4ab3ec4c230ead81c4aa88d05512825df526.exe
1564	2fa3267ec3e2208337c09227702d4ab3ec4c230ead81c4aa88d05512825df526.exe
2316	vbc.exe
2316	vbc.exe
2316	vbc.exe
2316	vbc.exe
2316	vbc.exe
2316	vbc.exe
2316	vbc.exe
2316	vbc.exe
2316	vbc.exe
2316	vbc.exe
2316	vbc.exe
2316	vbc.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1564	2fa3267ec3e2208337c09227702d4ab3ec4c230ead81c4aa88d05512825df526.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 1564 wrote to memory of 3352	1564	2fa3267ec3e2208337c09227702d4ab3ec4c230ead81c4aa88d05512825df526.exe	84
PID 1564 wrote to memory of 3352	1564	2fa3267ec3e2208337c09227702d4ab3ec4c230ead81c4aa88d05512825df526.exe	84
PID 1564 wrote to memory of 3352	1564	2fa3267ec3e2208337c09227702d4ab3ec4c230ead81c4aa88d05512825df526.exe	84
PID 1564 wrote to memory of 4480	1564	2fa3267ec3e2208337c09227702d4ab3ec4c230ead81c4aa88d05512825df526.exe	86
PID 1564 wrote to memory of 4480	1564	2fa3267ec3e2208337c09227702d4ab3ec4c230ead81c4aa88d05512825df526.exe	86
PID 1564 wrote to memory of 4480	1564	2fa3267ec3e2208337c09227702d4ab3ec4c230ead81c4aa88d05512825df526.exe	86
PID 1564 wrote to memory of 4480	1564	2fa3267ec3e2208337c09227702d4ab3ec4c230ead81c4aa88d05512825df526.exe	86
PID 1564 wrote to memory of 4480	1564	2fa3267ec3e2208337c09227702d4ab3ec4c230ead81c4aa88d05512825df526.exe	86
PID 1564 wrote to memory of 4480	1564	2fa3267ec3e2208337c09227702d4ab3ec4c230ead81c4aa88d05512825df526.exe	86
PID 1564 wrote to memory of 4480	1564	2fa3267ec3e2208337c09227702d4ab3ec4c230ead81c4aa88d05512825df526.exe	86
PID 1564 wrote to memory of 4480	1564	2fa3267ec3e2208337c09227702d4ab3ec4c230ead81c4aa88d05512825df526.exe	86
PID 4480 wrote to memory of 2316	4480	RegAsm.exe	91
PID 4480 wrote to memory of 2316	4480	RegAsm.exe	91
PID 4480 wrote to memory of 2316	4480	RegAsm.exe	91
PID 4480 wrote to memory of 2316	4480	RegAsm.exe	91
PID 4480 wrote to memory of 2316	4480	RegAsm.exe	91
PID 4480 wrote to memory of 2316	4480	RegAsm.exe	91
PID 4480 wrote to memory of 2316	4480	RegAsm.exe	91
PID 4480 wrote to memory of 2316	4480	RegAsm.exe	91
PID 4480 wrote to memory of 2316	4480	RegAsm.exe	91
PID 4480 wrote to memory of 4152	4480	RegAsm.exe	92
PID 4480 wrote to memory of 4152	4480	RegAsm.exe	92
PID 4480 wrote to memory of 4152	4480	RegAsm.exe	92
PID 4480 wrote to memory of 4152	4480	RegAsm.exe	92
PID 4480 wrote to memory of 4152	4480	RegAsm.exe	92
PID 4480 wrote to memory of 4152	4480	RegAsm.exe	92
PID 4480 wrote to memory of 4152	4480	RegAsm.exe	92
PID 4480 wrote to memory of 4152	4480	RegAsm.exe	92
PID 4480 wrote to memory of 4152	4480	RegAsm.exe	92

C:\Users\Admin\AppData\Local\Temp\2fa3267ec3e2208337c09227702d4ab3ec4c230ead81c4aa88d05512825df526.exe
"C:\Users\Admin\AppData\Local\Temp\2fa3267ec3e2208337c09227702d4ab3ec4c230ead81c4aa88d05512825df526.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1564
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zbXUbBOZP" /XML "C:\Users\Admin\AppData\Local\Temp\tmp37B9.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3352
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4480
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /stext "C:\Users\Admin\AppData\Local\Temp\tmp7FCF.tmp"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:2316
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /stext "C:\Users\Admin\AppData\Local\Temp\tmp87DE.tmp"
    3⤵
    - Accesses Microsoft Outlook accounts
    PID:4152

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Scripting

T1064

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Scripting

T1064

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

tmp37B9.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp37B9.tmp
Size 1KB
SHA256 9635d5671300066e8f5c1b8b443848ad0553f4153084d79f7990e27c7dbedac5
MD5 8b4cb1d2a6fe54b22f64a69270e4f863
SHA1 3b073e41dbdeff4c004d361255fee28107e117b4
SHA512 1a31b6c81db7f81ce2f7d0d45a135a62db70f08954cc70329166d63ea358ae0211f04fc0bd9bc86d5465eb54d2ddadf2993f57da046f513f28902d683330e943
MD5 SHA1 SHA512

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tmp7FCF.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp7FCF.tmp
Size 4KB
SHA256 84e388e2bbff6a229d99df8d7e0558e46e793106c2f3bb290c6acc06fe31fe9c
MD5 92b3d04dbcf7aa8eabb0096c55624068
SHA1 04a3b14a8f16bdd8a67f1b5d6be8c3db79c766c7
SHA512 fbd6a298b66e2117f68028cdf9fa1b3e441f87fa8a052ce1be628ae65116d5b2953cdc8117dce57e86475a75412b1a85f431eb0da6dd788ec5312d34ff71f9d1
SSDEEP 48:wvvv0PTgxfvvcPTgxfdvv0PTgxBvv0PTgxakvv0PTg7:mvMTgxvkTgp1vMTgPvMTgbvMTg7
MD5 SHA1 SHA512 SSDEEP

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memory/1564-137-0x00000000745D0000-0x0000000074B81000-memory.dmp

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memory/1564-132-0x00000000745D0000-0x0000000074B81000-memory.dmp

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memory/1564-131-0x00000000745D0000-0x0000000074B81000-memory.dmp

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memory/2316-145-0x0000000000400000-0x000000000045B000-memory.dmp

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memory/2316-141-0x0000000000400000-0x000000000045B000-memory.dmp

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memory/2316-143-0x0000000000400000-0x000000000045B000-memory.dmp

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memory/2316-144-0x0000000000400000-0x000000000045B000-memory.dmp

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memory/4152-148-0x0000000000400000-0x000000000041C000-memory.dmp

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memory/4152-150-0x0000000000400000-0x000000000041C000-memory.dmp

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memory/4152-151-0x0000000000400000-0x000000000041C000-memory.dmp

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memory/4480-138-0x00000000745D0000-0x0000000074B81000-memory.dmp

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memory/4480-139-0x00000000745D0000-0x0000000074B81000-memory.dmp

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