ec492e1dd50a346194605206cacee81c6e1622b99c445243fd74a8a2c8cd36ce

Analysis

max time kernel
124s
max time network
164s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25/12/2023, 14:26

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General

Target

256db519b26ec89ca37062164400efc6.exe
Size

826KB
MD5

256db519b26ec89ca37062164400efc6
SHA1

8a4bf5fd514d3b8ef1e7ff6237005969d9fccd06
SHA256

ec492e1dd50a346194605206cacee81c6e1622b99c445243fd74a8a2c8cd36ce
SHA512

45cdadeb399f1e53338f4dfa2a3361db7626881e9550284d271e1740ed53f05afe5faf4aa1d9cc937c90ee934cf9d44fd31d9760903b7506a741bc0b01d33aa1
SSDEEP

24576:5RUjsjkycf3Eo631bJd5A8uvK9fvK/yvKdHPfptz:5+js23EowbSDvKpvK/yvKdvRtz

Score

7^/10

spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2484	dllstub.exe

Loads dropped DLL 32 IoCs

pid	Process
800	256db519b26ec89ca37062164400efc6.exe
800	256db519b26ec89ca37062164400efc6.exe
800	256db519b26ec89ca37062164400efc6.exe
800	256db519b26ec89ca37062164400efc6.exe
800	256db519b26ec89ca37062164400efc6.exe
800	256db519b26ec89ca37062164400efc6.exe
800	256db519b26ec89ca37062164400efc6.exe
800	256db519b26ec89ca37062164400efc6.exe
800	256db519b26ec89ca37062164400efc6.exe
800	256db519b26ec89ca37062164400efc6.exe
800	256db519b26ec89ca37062164400efc6.exe
800	256db519b26ec89ca37062164400efc6.exe
800	256db519b26ec89ca37062164400efc6.exe
800	256db519b26ec89ca37062164400efc6.exe
800	256db519b26ec89ca37062164400efc6.exe
800	256db519b26ec89ca37062164400efc6.exe
800	256db519b26ec89ca37062164400efc6.exe
800	256db519b26ec89ca37062164400efc6.exe
800	256db519b26ec89ca37062164400efc6.exe
800	256db519b26ec89ca37062164400efc6.exe
800	256db519b26ec89ca37062164400efc6.exe
800	256db519b26ec89ca37062164400efc6.exe
800	256db519b26ec89ca37062164400efc6.exe
800	256db519b26ec89ca37062164400efc6.exe
800	256db519b26ec89ca37062164400efc6.exe
800	256db519b26ec89ca37062164400efc6.exe
2484	dllstub.exe
2484	dllstub.exe
2484	dllstub.exe
2484	dllstub.exe
2484	dllstub.exe
2484	dllstub.exe

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
T1552.001
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

NSIS installer 4 IoCs

installer

resource	yara_rule
behavioral1/files/0x000800000001938f-142.dat	nsis_installer_2
behavioral1/files/0x000800000001938f-147.dat	nsis_installer_2
behavioral1/files/0x000800000001938f-148.dat	nsis_installer_2
behavioral1/files/0x000800000001938f-144.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 800 wrote to memory of 2484	800	256db519b26ec89ca37062164400efc6.exe	27
PID 800 wrote to memory of 2484	800	256db519b26ec89ca37062164400efc6.exe	27
PID 800 wrote to memory of 2484	800	256db519b26ec89ca37062164400efc6.exe	27
PID 800 wrote to memory of 2484	800	256db519b26ec89ca37062164400efc6.exe	27
PID 800 wrote to memory of 2484	800	256db519b26ec89ca37062164400efc6.exe	27
PID 800 wrote to memory of 2484	800	256db519b26ec89ca37062164400efc6.exe	27
PID 800 wrote to memory of 2484	800	256db519b26ec89ca37062164400efc6.exe	27

C:\Users\Admin\AppData\Local\Temp\256db519b26ec89ca37062164400efc6.exe
"C:\Users\Admin\AppData\Local\Temp\256db519b26ec89ca37062164400efc6.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:800
- C:\Users\Admin\AppData\Local\Temp\nsz9C02.tmp\dllstub.exe
  C:\Users\Admin\AppData\Local\Temp\nsz9C02.tmp\dllstub.exe ~URL Parts Error~~~~URL Parts Error~URL Parts Error~~#~3392~4635~~URL Parts Error~~SendRequest Error~62-DD-1C-0E-CF-51~#~~SendRequest Error~~IE~~
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2484

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

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\nsz9C02.tmp\dllstub.exe

Filesize
62KB

MD5
565cd050e04a98c2c1557efdb7efe7c9

SHA1
dbee320b3ff9ea8c7b6f14c931403b242ca41327

SHA256
c3c1470f0e918482ac497b59eb02261b27ee3e128e07be00ef59aa8ca5692882

SHA512
b940d088d292996e9f850468bb31b6acae433669fb8a887138bb0ea793dde665efaa3de97b1cf3b312a6e1d70fba82834ddb7a4776c32a9801d1353d836b61c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsz9C02.tmp\dllstub.exe

Filesize
37KB

MD5
f43ffa8a0e463aca4caf8ca50613b64f

SHA1
aeb6eda70bc2c87bb121bea73ea53dc2e4aa808e

SHA256
a87992a068ee954948a8f5f23e30591624725b6b2ee402daabb970a21799018b

SHA512
7df4e63fb4752d06bdd0c54ecfdfda6121848c117c52ff97d9a69d374d30b136fd2f401cfc7ea806bed2b9510f03a21820935c92e6950b27356e89c97bbddb72

Download Submit
\Users\Admin\AppData\Local\Temp\nsz9C02.tmp\GetVersion.dll

Filesize
6KB

MD5
5264f7d6d89d1dc04955cfb391798446

SHA1
211d8d3e7c2b2f57f54a11cb8bc4fa536df08acc

SHA256
7d76c7dd8f7cd5a87e0118dacb434db3971a049501e22a5f4b947154621ab3d4

SHA512
80d27ee2f87e2822bd5c8c55cc3d1e49beebb86d8557c92b52b7cbea9f27882d80e59eefa25e414eecee268a9a6193b6b50b748de33c778b007cde24ef8bcfb7

Download Submit
\Users\Admin\AppData\Local\Temp\nsz9C02.tmp\Math.dll

Filesize
66KB

MD5
b140459077c7c39be4bef249c2f84535

SHA1
c56498241c2ddafb01961596da16d08d1b11cd35

SHA256
0598f7d83db44929b7170c1285457b52b4281185f63ced102e709bf065f10d67

SHA512
fbcb19a951d96a216d73b6b3e005338bbb6e11332c6cc8c3f179ccd420b4db0e5682dc4245bd120dcb67bc70960eab368e74c68c7c165a485a12a7d0d8a00328

Download Submit
\Users\Admin\AppData\Local\Temp\nsz9C02.tmp\System.dll

Filesize
11KB

MD5
c17103ae9072a06da581dec998343fc1

SHA1
b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

SHA256
dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

SHA512
d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

Download Submit
\Users\Admin\AppData\Local\Temp\nsz9C02.tmp\UserInfo.dll

Filesize
4KB

MD5
7579ade7ae1747a31960a228ce02e666

SHA1
8ec8571a296737e819dcf86353a43fcf8ec63351

SHA256
564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5

SHA512
a88bc56e938374c333b0e33cb72951635b5d5a98b9cb2d6785073cbcad23bf4c0f9f69d3b7e87b46c76eb03ced9bb786844ce87656a9e3df4ca24acf43d7a05b

Download Submit
\Users\Admin\AppData\Local\Temp\nsz9C02.tmp\dllstub.exe

Filesize
125KB

MD5
00b903615e980d3bd057d272f195a455

SHA1
f7546e4e35fe2faf8e7eff0a4100904e1357bc35

SHA256
77e76c425ba4dfc6612cfff1cfa272180e794d7bcc0366afa629b2a2a2277ac7

SHA512
bbd09e8bfabf8577a05007cc3c46e7d1cd687932927312dde559c19f1b2b912daa21cf14cf5f1678588f5ad7bb8a386c8f45eb4b8fced2dee3891cb65c72f4eb

Download Submit
\Users\Admin\AppData\Local\Temp\nsz9C02.tmp\dllstub.exe

Filesize
64KB

MD5
c161fe77aac6eab4680f3fbf52eacd30

SHA1
555a5bae60100d6d5049f20d4bfd55a5f2fb4d1d

SHA256
9e5ac5534e8bebb2c2c6062d9d5c41b0df7af0c8a72224eb58ef34516c2aebda

SHA512
00fde0e7410440c8b5da0764b3bfb2c7972ba3edd31a2fa04c9f887c2926122bfca870cd6313e7b5ec1394dcbbc18ae5ae3eea938cf13e08c7a232881ea5d8f4

Download Submit
\Users\Admin\AppData\Local\Temp\nsz9C02.tmp\intlib.dll

Filesize
24KB

MD5
1efbbf5a54eb145a1a422046fd8dfb2c

SHA1
ec4efd0a95bb72fd4cf47423647e33e5a3fddf26

SHA256
983859570099b941c19d5eb9755eda19dd21f63e8ccad70f6e93f055c329d341

SHA512
7fdeba8c961f3507162eb59fb8b9b934812d449cc85c924f61722a099618d771fed91cfb3944e10479280b73648a9a5cbb23482d7b7f8bfb130f23e8fd6c15fb

Download Submit
\Users\Admin\AppData\Local\Temp\nsz9C02.tmp\nsDialogs.dll

Filesize
9KB

MD5
c10e04dd4ad4277d5adc951bb331c777

SHA1
b1e30808198a3ae6d6d1cca62df8893dc2a7ad43

SHA256
e31ad6c6e82e603378cb6b80e67d0e0dcd9cf384e1199ac5a65cb4935680021a

SHA512
853a5564bf751d40484ea482444c6958457cb4a17fb973cf870f03f201b8b2643be41bccde00f6b2026dc0c3d113e6481b0dc4c7b0f3ae7966d38c92c6b5862e

Download Submit
\Users\Admin\AppData\Local\Temp\nsz9C02.tmp\registry.dll

Filesize
16KB

MD5
24a7a119e289f1b5b69f3d6cf258db7c

SHA1
fec84298f9819adf155fcf4e9e57dd402636c177

SHA256
ae53f8e00574a87dd243fdf344141417cfe2af318c6c5e363a030d727a6c75d1

SHA512
fdbbedcc877bf020a5965f6ba8586ade48cfbe03ac0af8190a8acf077fb294ffd6b5a7ae49870bff8cacd9e33d591be63b5b3d5c2e432c640212bdcd0c602861

Download Submit
memory/800-56-0x00000000003E0000-0x00000000003FA000-memory.dmp

Filesize
104KB

Download