8be8ef8d67268e081f0a0c5877560dffb4d2a76c0a4e3ac818552057cc762f40

Analysis

max time kernel
97s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
03/10/2022, 08:37

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General

Target

8be8ef8d67268e081f0a0c5877560dffb4d2a76c0a4e3ac818552057cc762f40.exe
Size

679KB
MD5

41a7c58d303ef9e6634368ad73d355d3
SHA1

91c07b28595b032fb0a11e2a55b138efb9e347be
SHA256

8be8ef8d67268e081f0a0c5877560dffb4d2a76c0a4e3ac818552057cc762f40
SHA512

5bfda5e7890e2a8dc0395c1369a6c9b15c0b2eaf438215c53424685964cbcb7716fb1a4d32d8cb8ffd38ab86f16698113b7f8c9ee3c5f93abe8f1c6ac278cee2
SSDEEP

12288:o1P8JUFCBlF32PyN724Ck6TpxGbj8lleYIaga8:o1kJUFCBl52Pe724XSlzIaga8

Score

9^/10

spyware stealer upx

Malware Config

Signatures

NirSoft WebBrowserPassView 2 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/files/0x0006000000022e3b-145.dat	WebBrowserPassView
behavioral2/files/0x0006000000022e3b-146.dat	WebBrowserPassView

Nirsoft 5 IoCs

resource	yara_rule
behavioral2/memory/224-136-0x0000000000400000-0x0000000000426000-memory.dmp	Nirsoft
behavioral2/memory/224-137-0x0000000000400000-0x0000000000426000-memory.dmp	Nirsoft
behavioral2/memory/3544-142-0x0000000000400000-0x0000000000418000-memory.dmp	Nirsoft
behavioral2/files/0x0006000000022e3b-145.dat	Nirsoft
behavioral2/files/0x0006000000022e3b-146.dat	Nirsoft

Executes dropped EXE 4 IoCs

pid	Process
224	mspass.exe
3544	ProduKey.exe
3488	WebBrowserPassView.exe
864	MC.exe

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x000500000001daff-134.dat	upx
behavioral2/files/0x000500000001daff-135.dat	upx
behavioral2/memory/224-136-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral2/memory/224-137-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral2/files/0x0006000000022e38-139.dat	upx
behavioral2/files/0x0006000000022e38-140.dat	upx
behavioral2/memory/3544-142-0x0000000000400000-0x0000000000418000-memory.dmp	upx

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2696	864	WerFault.exe	89

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
224	mspass.exe
224	mspass.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	224	mspass.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4584 wrote to memory of 224	4584	8be8ef8d67268e081f0a0c5877560dffb4d2a76c0a4e3ac818552057cc762f40.exe	84
PID 4584 wrote to memory of 224	4584	8be8ef8d67268e081f0a0c5877560dffb4d2a76c0a4e3ac818552057cc762f40.exe	84
PID 4584 wrote to memory of 224	4584	8be8ef8d67268e081f0a0c5877560dffb4d2a76c0a4e3ac818552057cc762f40.exe	84
PID 4584 wrote to memory of 3544	4584	8be8ef8d67268e081f0a0c5877560dffb4d2a76c0a4e3ac818552057cc762f40.exe	85
PID 4584 wrote to memory of 3544	4584	8be8ef8d67268e081f0a0c5877560dffb4d2a76c0a4e3ac818552057cc762f40.exe	85
PID 4584 wrote to memory of 3544	4584	8be8ef8d67268e081f0a0c5877560dffb4d2a76c0a4e3ac818552057cc762f40.exe	85
PID 4584 wrote to memory of 3488	4584	8be8ef8d67268e081f0a0c5877560dffb4d2a76c0a4e3ac818552057cc762f40.exe	86
PID 4584 wrote to memory of 3488	4584	8be8ef8d67268e081f0a0c5877560dffb4d2a76c0a4e3ac818552057cc762f40.exe	86
PID 4584 wrote to memory of 3488	4584	8be8ef8d67268e081f0a0c5877560dffb4d2a76c0a4e3ac818552057cc762f40.exe	86
PID 4584 wrote to memory of 864	4584	8be8ef8d67268e081f0a0c5877560dffb4d2a76c0a4e3ac818552057cc762f40.exe	89
PID 4584 wrote to memory of 864	4584	8be8ef8d67268e081f0a0c5877560dffb4d2a76c0a4e3ac818552057cc762f40.exe	89

C:\Users\Admin\AppData\Local\Temp\8be8ef8d67268e081f0a0c5877560dffb4d2a76c0a4e3ac818552057cc762f40.exe
"C:\Users\Admin\AppData\Local\Temp\8be8ef8d67268e081f0a0c5877560dffb4d2a76c0a4e3ac818552057cc762f40.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4584
- C:\Users\Admin\AppData\Local\Temp\mspass.exe
  C:\Users\Admin\AppData\Local\Temp\mspass.exe /stext C:\Users\Admin\AppData\Local\Temp\MS.txt
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:224
- C:\Users\Admin\AppData\Local\Temp\ProduKey.exe
  C:\Users\Admin\AppData\Local\Temp\ProduKey.exe /stext C:\Users\Admin\AppData\Local\Temp\ProduKey.txt
  2⤵
  - Executes dropped EXE
  PID:3544
- C:\Users\Admin\AppData\Local\Temp\WebBrowserPassView.exe
  C:\Users\Admin\AppData\Local\Temp\WebBrowserPassView.exe /stext C:\Users\Admin\AppData\Local\Temp\Opera.txt
  2⤵
  - Executes dropped EXE
  PID:3488
- C:\Users\Admin\AppData\Local\Temp\MC.exe
  C:\Users\Admin\AppData\Local\Temp\MC.exe
  2⤵
  - Executes dropped EXE
  PID:864
- - C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 864 -s 408
    3⤵
    - Program crash
    PID:2696

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 472 -p 864 -ip 864
1⤵
PID:4328

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\MC.exe

Filesize
32KB

MD5
eba43e8a28297df4146bef07654f4580

SHA1
a5e96a0e8cd441f48dfcc3b97d45b0b466a864fa

SHA256
714eb102758c1c0feaf34a7e888026e7c073b893e931ac12ec6f607627b55af9

SHA512
2748f1f943767b5f2df5c9bc85f325a85f2d1c55090aa6e2d8e04901777200ba34ea75c4c6c49b473f964280b58f00e591f67a3b56f4e89f958e9f65966825bb

Download Submit
C:\Users\Admin\AppData\Local\Temp\MC.exe

Filesize
32KB

MD5
eba43e8a28297df4146bef07654f4580

SHA1
a5e96a0e8cd441f48dfcc3b97d45b0b466a864fa

SHA256
714eb102758c1c0feaf34a7e888026e7c073b893e931ac12ec6f607627b55af9

SHA512
2748f1f943767b5f2df5c9bc85f325a85f2d1c55090aa6e2d8e04901777200ba34ea75c4c6c49b473f964280b58f00e591f67a3b56f4e89f958e9f65966825bb

Download Submit
C:\Users\Admin\AppData\Local\Temp\Opera.txt

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
C:\Users\Admin\AppData\Local\Temp\ProduKey.exe

Filesize
37KB

MD5
12507d0c4b2963ba229e02ff961ec400

SHA1
6a9b296e5b614457f106cfc8ed6fc24bd75ba9aa

SHA256
bbcb52b0538c81d9ced034e2c0435188bcd1d36f09bce76654f494e4d5dcdb0c

SHA512
1ad84dc8f90fd2342f4136d7594a0e10ea6ceefa0fd1b64a96a9200af260f76e3be22e1e3d6577c8b6b9a4ac655d0a8e2e2615f52114e1b11fd0773ec4e2bf10

Download Submit
C:\Users\Admin\AppData\Local\Temp\ProduKey.exe

Filesize
37KB

MD5
12507d0c4b2963ba229e02ff961ec400

SHA1
6a9b296e5b614457f106cfc8ed6fc24bd75ba9aa

SHA256
bbcb52b0538c81d9ced034e2c0435188bcd1d36f09bce76654f494e4d5dcdb0c

SHA512
1ad84dc8f90fd2342f4136d7594a0e10ea6ceefa0fd1b64a96a9200af260f76e3be22e1e3d6577c8b6b9a4ac655d0a8e2e2615f52114e1b11fd0773ec4e2bf10

Download Submit
C:\Users\Admin\AppData\Local\Temp\ProduKey.txt

Filesize
725B

MD5
dedb3e44593c6c237c75c09920dfc460

SHA1
8b8b0f80bdc8bb3b4c1fb7224165e046616581f2

SHA256
9a1c9b0266c9d670d0c3a81e04ee28e4c47a0861d24ce09cdf68ddcba965bb46

SHA512
242c825e06f802fc034a2f52e505afe09f74d69b55a2a0c84e602ad3ce31fb8cbc3afdca414781a1b4bae548ff8c6c508cc098fe16fe32951676be0959793f95

Download Submit
C:\Users\Admin\AppData\Local\Temp\WebBrowserPassView.exe

Filesize
321KB

MD5
3b6bcf49057ea94968017b3d14cdf72d

SHA1
41ca649fdc27e352d2f7f8b4e14f84d21d20ab4b

SHA256
989f90eb63cf2c215d81a9838911f990e1bf4a97660c21a988d74f605abfc6e9

SHA512
cfe0daaba893458553655b4b30a51fcd25e2be8023c3328f4420dff44909cd66131d41cce39843a1883f56b49a423a821e79fc235b169ff1d2087f72f9a20206

Download Submit
C:\Users\Admin\AppData\Local\Temp\WebBrowserPassView.exe

Filesize
321KB

MD5
3b6bcf49057ea94968017b3d14cdf72d

SHA1
41ca649fdc27e352d2f7f8b4e14f84d21d20ab4b

SHA256
989f90eb63cf2c215d81a9838911f990e1bf4a97660c21a988d74f605abfc6e9

SHA512
cfe0daaba893458553655b4b30a51fcd25e2be8023c3328f4420dff44909cd66131d41cce39843a1883f56b49a423a821e79fc235b169ff1d2087f72f9a20206

Download Submit
C:\Users\Admin\AppData\Local\Temp\mspass.exe

Filesize
65KB

MD5
ffc52f2b4435fcddaca6e15489a88b75

SHA1
63ec31a04cf176852344d544ae855da0dac64980

SHA256
3f3c8484962b395f304a836ee5e8ee17beaafe982795c9747d8ee98cc6e4ca8f

SHA512
389694feccfe6ca352705b9481913fece6d1d47083f235ccdd60c05cfda82606be53845fde0dba8ec3f3748f820a828c9be0ce078c8b9cc853285b23f172841c

Download Submit
C:\Users\Admin\AppData\Local\Temp\mspass.exe

Filesize
65KB

MD5
ffc52f2b4435fcddaca6e15489a88b75

SHA1
63ec31a04cf176852344d544ae855da0dac64980

SHA256
3f3c8484962b395f304a836ee5e8ee17beaafe982795c9747d8ee98cc6e4ca8f

SHA512
389694feccfe6ca352705b9481913fece6d1d47083f235ccdd60c05cfda82606be53845fde0dba8ec3f3748f820a828c9be0ce078c8b9cc853285b23f172841c

Download Submit
memory/224-137-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/224-136-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/864-151-0x0000000140000000-0x0000000140017000-memory.dmp

Filesize
92KB

Download
memory/3544-142-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/4584-143-0x00000000752B0000-0x0000000075861000-memory.dmp

Filesize
5.7MB

Download
memory/4584-132-0x00000000752B0000-0x0000000075861000-memory.dmp

Filesize
5.7MB

Download
memory/4584-152-0x00000000752B0000-0x0000000075861000-memory.dmp

Filesize
5.7MB

Download