fda395d06f8185bbca10e3de802ae2e0ce776388ef92a461c93e4d13e2b1a618

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
19-01-2024 06:26

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General

Target

66ed109b34c0cb23b2c4eb36cd0b7161.exe
Size

327KB
MD5

66ed109b34c0cb23b2c4eb36cd0b7161
SHA1

427aa9f8da4e7c406366bbee48f0b8cd84a532b6
SHA256

fda395d06f8185bbca10e3de802ae2e0ce776388ef92a461c93e4d13e2b1a618
SHA512

d60c8b2da5d3542f303d788362bba4e3a7513f0c938cb11fbb32be9793cd2836cf06c2960e76caeb07f8464f791ceae30814e0eaece1231992c767dc0ac04724
SSDEEP

6144:UySmuzOzapy5X73Cg3LFpNMz4g6BMvIjjVUjfYJRN1y9q:0iak5X7J3g6BMvIjjVUMJRNb

Score

9^/10

collection

Malware Config

Signatures

Nirsoft 4 IoCs

resource	yara_rule
behavioral1/memory/2456-33-0x0000000000400000-0x000000000041E000-memory.dmp	Nirsoft
behavioral1/memory/2456-38-0x0000000000400000-0x000000000041E000-memory.dmp	Nirsoft
behavioral1/memory/2456-39-0x0000000000400000-0x000000000041E000-memory.dmp	Nirsoft
behavioral1/memory/2728-78-0x0000000000400000-0x0000000000414000-memory.dmp	Nirsoft

Executes dropped EXE 8 IoCs

pid	Process
348	passstealer.exe
2456	passstealer.exe
2184	passstealer.exe
2728	passstealer.exe
2216	passstealer.exe
2144	passstealer.exe
760	passstealer.exe
2676	passstealer.exe

Loads dropped DLL 9 IoCs

pid	Process
2964	66ed109b34c0cb23b2c4eb36cd0b7161.exe
2964	66ed109b34c0cb23b2c4eb36cd0b7161.exe
348	passstealer.exe
348	passstealer.exe
348	passstealer.exe
348	passstealer.exe
348	passstealer.exe
348	passstealer.exe
348	passstealer.exe

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	passstealer.exe

Suspicious use of SetThreadContext 7 IoCs

description	pid	Process	procid_target
PID 348 set thread context of 2456	348	passstealer.exe	29
PID 348 set thread context of 2184	348	passstealer.exe	30
PID 348 set thread context of 2728	348	passstealer.exe	31
PID 348 set thread context of 2216	348	passstealer.exe	32
PID 348 set thread context of 2144	348	passstealer.exe	33
PID 348 set thread context of 760	348	passstealer.exe	34
PID 348 set thread context of 2676	348	passstealer.exe	35

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2456	passstealer.exe
Token: SeDebugPrivilege	2728	passstealer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2964	66ed109b34c0cb23b2c4eb36cd0b7161.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2964 wrote to memory of 348	2964	66ed109b34c0cb23b2c4eb36cd0b7161.exe	28
PID 2964 wrote to memory of 348	2964	66ed109b34c0cb23b2c4eb36cd0b7161.exe	28
PID 2964 wrote to memory of 348	2964	66ed109b34c0cb23b2c4eb36cd0b7161.exe	28
PID 2964 wrote to memory of 348	2964	66ed109b34c0cb23b2c4eb36cd0b7161.exe	28
PID 348 wrote to memory of 2456	348	passstealer.exe	29
PID 348 wrote to memory of 2456	348	passstealer.exe	29
PID 348 wrote to memory of 2456	348	passstealer.exe	29
PID 348 wrote to memory of 2456	348	passstealer.exe	29
PID 348 wrote to memory of 2456	348	passstealer.exe	29
PID 348 wrote to memory of 2456	348	passstealer.exe	29
PID 348 wrote to memory of 2456	348	passstealer.exe	29
PID 348 wrote to memory of 2456	348	passstealer.exe	29
PID 348 wrote to memory of 2456	348	passstealer.exe	29
PID 348 wrote to memory of 2456	348	passstealer.exe	29
PID 348 wrote to memory of 2184	348	passstealer.exe	30
PID 348 wrote to memory of 2184	348	passstealer.exe	30
PID 348 wrote to memory of 2184	348	passstealer.exe	30
PID 348 wrote to memory of 2184	348	passstealer.exe	30
PID 348 wrote to memory of 2184	348	passstealer.exe	30
PID 348 wrote to memory of 2184	348	passstealer.exe	30
PID 348 wrote to memory of 2184	348	passstealer.exe	30
PID 348 wrote to memory of 2184	348	passstealer.exe	30
PID 348 wrote to memory of 2184	348	passstealer.exe	30
PID 348 wrote to memory of 2184	348	passstealer.exe	30
PID 348 wrote to memory of 2728	348	passstealer.exe	31
PID 348 wrote to memory of 2728	348	passstealer.exe	31
PID 348 wrote to memory of 2728	348	passstealer.exe	31
PID 348 wrote to memory of 2728	348	passstealer.exe	31
PID 348 wrote to memory of 2728	348	passstealer.exe	31
PID 348 wrote to memory of 2728	348	passstealer.exe	31
PID 348 wrote to memory of 2728	348	passstealer.exe	31
PID 348 wrote to memory of 2728	348	passstealer.exe	31
PID 348 wrote to memory of 2728	348	passstealer.exe	31
PID 348 wrote to memory of 2728	348	passstealer.exe	31
PID 348 wrote to memory of 2216	348	passstealer.exe	32
PID 348 wrote to memory of 2216	348	passstealer.exe	32
PID 348 wrote to memory of 2216	348	passstealer.exe	32
PID 348 wrote to memory of 2216	348	passstealer.exe	32
PID 348 wrote to memory of 2216	348	passstealer.exe	32
PID 348 wrote to memory of 2216	348	passstealer.exe	32
PID 348 wrote to memory of 2216	348	passstealer.exe	32
PID 348 wrote to memory of 2216	348	passstealer.exe	32
PID 348 wrote to memory of 2216	348	passstealer.exe	32
PID 348 wrote to memory of 2216	348	passstealer.exe	32
PID 348 wrote to memory of 2144	348	passstealer.exe	33
PID 348 wrote to memory of 2144	348	passstealer.exe	33
PID 348 wrote to memory of 2144	348	passstealer.exe	33
PID 348 wrote to memory of 2144	348	passstealer.exe	33
PID 348 wrote to memory of 2144	348	passstealer.exe	33
PID 348 wrote to memory of 2144	348	passstealer.exe	33
PID 348 wrote to memory of 2144	348	passstealer.exe	33
PID 348 wrote to memory of 2144	348	passstealer.exe	33
PID 348 wrote to memory of 2144	348	passstealer.exe	33
PID 348 wrote to memory of 2144	348	passstealer.exe	33
PID 348 wrote to memory of 760	348	passstealer.exe	34
PID 348 wrote to memory of 760	348	passstealer.exe	34
PID 348 wrote to memory of 760	348	passstealer.exe	34
PID 348 wrote to memory of 760	348	passstealer.exe	34
PID 348 wrote to memory of 760	348	passstealer.exe	34
PID 348 wrote to memory of 760	348	passstealer.exe	34
PID 348 wrote to memory of 760	348	passstealer.exe	34
PID 348 wrote to memory of 760	348	passstealer.exe	34
PID 348 wrote to memory of 760	348	passstealer.exe	34
PID 348 wrote to memory of 760	348	passstealer.exe	34

C:\Users\Admin\AppData\Local\Temp\66ed109b34c0cb23b2c4eb36cd0b7161.exe
"C:\Users\Admin\AppData\Local\Temp\66ed109b34c0cb23b2c4eb36cd0b7161.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2964
- C:\Users\Admin\AppData\Local\Temp\passstealer.exe
  C:\Users\Admin\AppData\Local\Temp\\passstealer.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:348
- - C:\Users\Admin\AppData\Local\Temp\passstealer.exe
    /stext C:\Users\Admin\AppData\Local\Temp\temp.txt
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2456
- - C:\Users\Admin\AppData\Local\Temp\passstealer.exe
    /stext C:\Users\Admin\AppData\Local\Temp\temp.txt
    3⤵
    - Executes dropped EXE
    PID:2184
- - C:\Users\Admin\AppData\Local\Temp\passstealer.exe
    /stext C:\Users\Admin\AppData\Local\Temp\temp.txt
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2728
- - C:\Users\Admin\AppData\Local\Temp\passstealer.exe
    /stext C:\Users\Admin\AppData\Local\Temp\temp.txt
    3⤵
    - Executes dropped EXE
    - Accesses Microsoft Outlook accounts
    PID:2216
- - C:\Users\Admin\AppData\Local\Temp\passstealer.exe
    /stext C:\Users\Admin\AppData\Local\Temp\temp.txt
    3⤵
    - Executes dropped EXE
    PID:2144
- - C:\Users\Admin\AppData\Local\Temp\passstealer.exe
    /stext C:\Users\Admin\AppData\Local\Temp\temp.txt
    3⤵
    - Executes dropped EXE
    PID:760
- - C:\Users\Admin\AppData\Local\Temp\passstealer.exe
    /stext C:\Users\Admin\AppData\Local\Temp\temp.txt
    3⤵
    - Executes dropped EXE
    PID:2676

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\temp.txt

Filesize
33B

MD5
fec8656dbc9772ee24163ae3d57f41d9

SHA1
4e82071ada9bdc0002decba8b18b22a6dfdd127d

SHA256
7a3295b2c8c4797b8e5b4616bcc19bca30266371a54666855cbc67d443a3e4f4

SHA512
7c5965e41515a34db05c442587607bb51b6a3a8662df39513474f0d12c1236d882989d8c8bc99d24be27531c0e0df76af8c4beaf45e041767ab6ba2c72fc9326

Download Submit
\Users\Admin\AppData\Local\Temp\passstealer.exe

Filesize
265KB

MD5
02adab794c0db8e028dc60b4b0931f79

SHA1
4b8749e6bdf8e2dba122f7d2a62b0972726fab7e

SHA256
a2ff0c1a2781756779942a00062cdd9637d676edbc3ff0e0f18541f992a22495

SHA512
d7ad8bc3bd78242d3b0dfef086b839da002d8e13e1256a0e3ab6a5ad53ae57dc912f2a9835dd59c7a6cb15c1c5b0435cc06f520ce7cc1d624a3d900fcbb1b7f4

Download Submit
\Users\Admin\AppData\Local\Temp\passstealer.exe

Filesize
279KB

MD5
12d41eb9ef757656206cfb91c42a5459

SHA1
57d2edb7b5fc8469a626c07d1f3dc581ddaaef51

SHA256
b57dc9c7adb143fadff32ebc7070638f1d594bfdc05c68d01c8b56ae987ff018

SHA512
fa003734b6a0c9612adbf3d045be63ed3540ff437e0a1c57782c6fb6a0e8cc750c3c381ad06c531aed7a3b69138d356783850bedf254c818e1d96d281e9cd15f

Download Submit
memory/348-12-0x0000000000250000-0x000000000025A000-memory.dmp

Filesize
40KB

Download
memory/348-190-0x0000000000250000-0x0000000000258000-memory.dmp

Filesize
32KB

Download
memory/348-184-0x0000000000250000-0x0000000000258000-memory.dmp

Filesize
32KB

Download
memory/2144-129-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2144-132-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2184-62-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2184-42-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2184-44-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2184-46-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2184-49-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2184-55-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2184-61-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2184-52-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2456-30-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2456-39-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2456-22-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2456-24-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2456-27-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2456-20-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2456-34-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2456-33-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2456-38-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2728-78-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2728-65-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2728-67-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2728-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2728-72-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2728-75-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2964-0-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2964-186-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download