b4cffae6b5eea5f24a5199d427bb913f4a17c9184a5f836646048e85dc2729f4

General

Target

b4cffae6b5eea5f24a5199d427bb913f4a17c9184a5f836646048e85dc2729f4.exe
Size

553KB
MD5

492c4849d59e13aac0ebcdaf382e4cf9
SHA1

c288fd8b81bf04bf838a4fbedffe9a42b69b549e
SHA256

b4cffae6b5eea5f24a5199d427bb913f4a17c9184a5f836646048e85dc2729f4
SHA512

228f3857811f8aed7b238d8fa9ba508a28a99d2044fe7efcc8aee29c648182c10ea7438023192f49f85eda61580049d2cdfbcead7643428695efaf172bb77468

Score

9^/10

Malware Config

Signatures

NirSoft MailPassView 3 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral1/memory/360-83-0x000000000041211A-mapping.dmp	MailPassView
behavioral1/memory/360-82-0x0000000000400000-0x000000000041C000-memory.dmp	MailPassView
behavioral1/memory/360-86-0x0000000000400000-0x000000000041C000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 5 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral1/memory/1120-67-0x0000000000444D30-mapping.dmp	WebBrowserPassView
behavioral1/memory/1120-70-0x0000000000400000-0x000000000045C000-memory.dmp	WebBrowserPassView
behavioral1/memory/1120-66-0x0000000000400000-0x000000000045C000-memory.dmp	WebBrowserPassView
behavioral1/memory/1120-71-0x0000000000400000-0x000000000045C000-memory.dmp	WebBrowserPassView
behavioral1/memory/1120-72-0x0000000000400000-0x000000000045C000-memory.dmp	WebBrowserPassView

Nirsoft 8 IoCs

resource	yara_rule
behavioral1/memory/1120-67-0x0000000000444D30-mapping.dmp	Nirsoft
behavioral1/memory/1120-70-0x0000000000400000-0x000000000045C000-memory.dmp	Nirsoft
behavioral1/memory/1120-66-0x0000000000400000-0x000000000045C000-memory.dmp	Nirsoft
behavioral1/memory/1120-71-0x0000000000400000-0x000000000045C000-memory.dmp	Nirsoft
behavioral1/memory/1120-72-0x0000000000400000-0x000000000045C000-memory.dmp	Nirsoft
behavioral1/memory/360-83-0x000000000041211A-mapping.dmp	Nirsoft
behavioral1/memory/360-82-0x0000000000400000-0x000000000041C000-memory.dmp	Nirsoft
behavioral1/memory/360-86-0x0000000000400000-0x000000000041C000-memory.dmp	Nirsoft

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2040 set thread context of 1120	2040	b4cffae6b5eea5f24a5199d427bb913f4a17c9184a5f836646048e85dc2729f4.exe	28
PID 2040 set thread context of 360	2040	b4cffae6b5eea5f24a5199d427bb913f4a17c9184a5f836646048e85dc2729f4.exe	30

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1120	vbc.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 1120	2040	b4cffae6b5eea5f24a5199d427bb913f4a17c9184a5f836646048e85dc2729f4.exe	28
PID 2040 wrote to memory of 1120	2040	b4cffae6b5eea5f24a5199d427bb913f4a17c9184a5f836646048e85dc2729f4.exe	28
PID 2040 wrote to memory of 1120	2040	b4cffae6b5eea5f24a5199d427bb913f4a17c9184a5f836646048e85dc2729f4.exe	28
PID 2040 wrote to memory of 1120	2040	b4cffae6b5eea5f24a5199d427bb913f4a17c9184a5f836646048e85dc2729f4.exe	28
PID 2040 wrote to memory of 1120	2040	b4cffae6b5eea5f24a5199d427bb913f4a17c9184a5f836646048e85dc2729f4.exe	28
PID 2040 wrote to memory of 1120	2040	b4cffae6b5eea5f24a5199d427bb913f4a17c9184a5f836646048e85dc2729f4.exe	28
PID 2040 wrote to memory of 1120	2040	b4cffae6b5eea5f24a5199d427bb913f4a17c9184a5f836646048e85dc2729f4.exe	28
PID 2040 wrote to memory of 1120	2040	b4cffae6b5eea5f24a5199d427bb913f4a17c9184a5f836646048e85dc2729f4.exe	28
PID 2040 wrote to memory of 1120	2040	b4cffae6b5eea5f24a5199d427bb913f4a17c9184a5f836646048e85dc2729f4.exe	28
PID 2040 wrote to memory of 1120	2040	b4cffae6b5eea5f24a5199d427bb913f4a17c9184a5f836646048e85dc2729f4.exe	28
PID 2040 wrote to memory of 360	2040	b4cffae6b5eea5f24a5199d427bb913f4a17c9184a5f836646048e85dc2729f4.exe	30
PID 2040 wrote to memory of 360	2040	b4cffae6b5eea5f24a5199d427bb913f4a17c9184a5f836646048e85dc2729f4.exe	30
PID 2040 wrote to memory of 360	2040	b4cffae6b5eea5f24a5199d427bb913f4a17c9184a5f836646048e85dc2729f4.exe	30
PID 2040 wrote to memory of 360	2040	b4cffae6b5eea5f24a5199d427bb913f4a17c9184a5f836646048e85dc2729f4.exe	30
PID 2040 wrote to memory of 360	2040	b4cffae6b5eea5f24a5199d427bb913f4a17c9184a5f836646048e85dc2729f4.exe	30
PID 2040 wrote to memory of 360	2040	b4cffae6b5eea5f24a5199d427bb913f4a17c9184a5f836646048e85dc2729f4.exe	30
PID 2040 wrote to memory of 360	2040	b4cffae6b5eea5f24a5199d427bb913f4a17c9184a5f836646048e85dc2729f4.exe	30
PID 2040 wrote to memory of 360	2040	b4cffae6b5eea5f24a5199d427bb913f4a17c9184a5f836646048e85dc2729f4.exe	30
PID 2040 wrote to memory of 360	2040	b4cffae6b5eea5f24a5199d427bb913f4a17c9184a5f836646048e85dc2729f4.exe	30
PID 2040 wrote to memory of 360	2040	b4cffae6b5eea5f24a5199d427bb913f4a17c9184a5f836646048e85dc2729f4.exe	30

C:\Users\Admin\AppData\Local\Temp\b4cffae6b5eea5f24a5199d427bb913f4a17c9184a5f836646048e85dc2729f4.exe
"C:\Users\Admin\AppData\Local\Temp\b4cffae6b5eea5f24a5199d427bb913f4a17c9184a5f836646048e85dc2729f4.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2040
- 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\tmp3E97.tmp"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1120
- 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\tmpE6D8.tmp"
  2⤵
  PID:360

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scripting

1

T1064

Persistence

Privilege Escalation

Defense Evasion

Scripting

1

T1064

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp3E97.tmp

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/360-86-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/360-82-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/360-80-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/360-79-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/360-77-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/360-75-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/360-74-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/1120-70-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/1120-57-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/1120-71-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/1120-72-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/1120-60-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/1120-62-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/1120-64-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/1120-66-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/1120-58-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2040-54-0x0000000075841000-0x0000000075843000-memory.dmp

Filesize
8KB

Download
memory/2040-56-0x0000000074720000-0x0000000074CCB000-memory.dmp

Filesize
5.7MB

Download
memory/2040-55-0x0000000074720000-0x0000000074CCB000-memory.dmp

Filesize
5.7MB

Download

Analysis

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