5318739a0a7ac64d992edf27091adad9610a821c92f4a92793543b214d96a308

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
01-06-2024 13:23

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General

Target

uninst.exe
Size

2.0MB
MD5

a1f1a7f656916cf47867458b72f23393
SHA1

495867c9e79be12f9e08c7a3736d4bc760a82532
SHA256

aec4dcf83d1a3ff01f6f457ed5a200d8b719ac7f6fe132e48ac6bb31fa94202f
SHA512

ff3dd4d91d66070e16f08e81682cb3627095de4ae03a1445d4eecb499ad5765d8bed0befaf0182db4c9e2929624e7bae94145596004c56808112d109ad0d4ac1
SSDEEP

6144:3e34+vH+A2Q98lVxWEUtVOgHnh+Fhb8XFJo9huri/iuSDJxiG/UqM+SSG4DYz64W:cH+jQZG/izD9/RVDYz64Wj0fK1

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1160	Au_.exe

Loads dropped DLL 8 IoCs

pid	Process
3056	uninst.exe
1160	Au_.exe
1160	Au_.exe
1160	Au_.exe
1160	Au_.exe
1160	Au_.exe
1160	Au_.exe
1160	Au_.exe

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

System Information Discovery
T1082

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral21/files/0x003400000001471d-2.dat	nsis_installer_1
behavioral21/files/0x003400000001471d-2.dat	nsis_installer_2

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1160	Au_.exe
1160	Au_.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3056 wrote to memory of 1160	3056	uninst.exe	28
PID 3056 wrote to memory of 1160	3056	uninst.exe	28
PID 3056 wrote to memory of 1160	3056	uninst.exe	28
PID 3056 wrote to memory of 1160	3056	uninst.exe	28
PID 3056 wrote to memory of 1160	3056	uninst.exe	28
PID 3056 wrote to memory of 1160	3056	uninst.exe	28
PID 3056 wrote to memory of 1160	3056	uninst.exe	28

C:\Users\Admin\AppData\Local\Temp\uninst.exe
"C:\Users\Admin\AppData\Local\Temp\uninst.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3056
- C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
  "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  PID:1160

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nso250F.tmp\FindProcDLL.dll

Filesize
3KB

MD5
8614c450637267afacad1645e23ba24a

SHA1
e7b7b09b5bbc13e910aa36316d9cc5fc5d4dcdc2

SHA256
0fa04f06a6de18d316832086891e9c23ae606d7784d5d5676385839b21ca2758

SHA512
af46cd679097584ff9a1d894a729b6397f4b3af17dff3e6f07bef257bc7e48ffa341d82daf298616cd5df1450fc5ab7435cacb70f27302b6db193f01a9f8391b

Download Submit
\Users\Admin\AppData\Local\Temp\nso250F.tmp\SkinBtn.dll

Filesize
4KB

MD5
e4ec95271ff1bcebab49bdfed6817a22

SHA1
2c03e97f4773aea80ecdb98a1482e5896fe4677b

SHA256
ee1c06692a757473737b0ebdef16f77b63afac864d0890022d905e4873737dd6

SHA512
771a527133806307a1b17b7e956d6a3c16e9bc675bf084b43204ae784a057dac2726dbf90645692876043a4e7365ba8825c167621fde4760c79cd84679e2aa3d

Download Submit
\Users\Admin\AppData\Local\Temp\nso250F.tmp\SkinProgress.dll

Filesize
4KB

MD5
cc037c4703d3ec257efeef2ce0a1a20e

SHA1
b3d6cc8f687a31fb2c1a5921a38de9429af20502

SHA256
888b32ecbc37ce67d4edc28d894cba0a4f4e2488cfc2212d1af011bd0bfe97ff

SHA512
120bfa0a68775bef04c1863023b0e73a41982284fb36da7f497fbb7d5ed8631ad02fa09951424d339f6fefaa90a17c12f949dd68bb33bad64b1b7cace489d2a7

Download Submit
\Users\Admin\AppData\Local\Temp\nso250F.tmp\System.dll

Filesize
11KB

MD5
c17103ae9072a06da581dec998343fc1

SHA1
b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

SHA256
dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

SHA512
d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

Download Submit
\Users\Admin\AppData\Local\Temp\nso250F.tmp\WndProc.dll

Filesize
3KB

MD5
f0cb331dd4bd92a6ebce45e7cd1cf5ef

SHA1
b66ea0c10b08750295f2dc7c170b370402393214

SHA256
e7b3115fa2ce4a8fa09beeefa4fb634a474197f38a2854ce9be60d0a26016458

SHA512
7c33418f39b91ae0d4cc8b560f516bac293593eef539832815028878c2058bf1691c2d767a039cf312989839071f2f6f0b6d9d59835acdfff6b448bf1ffea271

Download Submit
\Users\Admin\AppData\Local\Temp\nso250F.tmp\nsDialogs.dll

Filesize
9KB

MD5
c10e04dd4ad4277d5adc951bb331c777

SHA1
b1e30808198a3ae6d6d1cca62df8893dc2a7ad43

SHA256
e31ad6c6e82e603378cb6b80e67d0e0dcd9cf384e1199ac5a65cb4935680021a

SHA512
853a5564bf751d40484ea482444c6958457cb4a17fb973cf870f03f201b8b2643be41bccde00f6b2026dc0c3d113e6481b0dc4c7b0f3ae7966d38c92c6b5862e

Download Submit
\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

Filesize
2.0MB

MD5
a1f1a7f656916cf47867458b72f23393

SHA1
495867c9e79be12f9e08c7a3736d4bc760a82532

SHA256
aec4dcf83d1a3ff01f6f457ed5a200d8b719ac7f6fe132e48ac6bb31fa94202f

SHA512
ff3dd4d91d66070e16f08e81682cb3627095de4ae03a1445d4eecb499ad5765d8bed0befaf0182db4c9e2929624e7bae94145596004c56808112d109ad0d4ac1

Download Submit
memory/1160-37-0x00000000007C1000-0x00000000007C2000-memory.dmp

Filesize
4KB

Download
memory/1160-36-0x00000000007C0000-0x00000000007C3000-memory.dmp

Filesize
12KB

Download
memory/1160-35-0x00000000007C1000-0x00000000007C2000-memory.dmp

Filesize
4KB

Download
memory/1160-34-0x00000000007C0000-0x00000000007C3000-memory.dmp

Filesize
12KB

Download
memory/1160-65-0x00000000007C1000-0x00000000007C2000-memory.dmp

Filesize
4KB

Download